Compute the solution:

Jai Ganesh · 2015-10-07 06:33:52

Hi bobbym,

The solution 350 is perfect! Keep it up!

351. Two dice are thrown simultaneously. Find the probability of getting
(i) an even number as the sum
(ii) the sum of a prime number
(iii) a total of at least 10
(iv) a double of even number
(v) a multiple of 2 on one dice and a multiple of 3 on the other
(vi) same number on both dice, i.e. a doublet
(vii) a multiple of 3 as the sum.

bobbym · 2015-10-08 04:29:50

Hi;

Jai Ganesh · 2015-10-08 07:35:23

Hi bobbym,

The solution 351 (seven parts) are all correct! Magnificent, bobbym!

352. 8 men and 12 boys can finish a piece of work in 10 days while 6 men and 8 boys can finish it in 14 days. Find the time taken by one man alone and that by one boy alone to finish the work.

bobbym · 2015-10-09 03:56:32

Hi;

Jai Ganesh · 2015-10-10 17:24:04

Hi bobbym,

The solution 352 is correct, bobbym! Excellent!

353. A hemispherical tank full of water is emptied by a pipe at the rate of

liters per second. How much time will it take to make the tank half-empty, if the tank is 3 meters in diameter?

Jai Ganesh · 2015-10-15 16:20:40

Hi,

.

354. A bag contains 12 balls out of which 'x' are white.
(i) If one ball is drawn at random, what is the probability that it will be a white ball?
(ii) If six more balls are put in the bag, the probability of dwawing a white ball will be doubled than that in (i). Find 'x'

bobbym · 2015-10-16 22:18:02

Hi;

Jai Ganesh · 2015-10-16 23:09:46

Hi bobbym,

The solution 354 (two parts) is perfect! Superb performance!

355. If p, q, r are real and

, then determine the nature of the roots of rhe equation .

bobbym · 2015-10-17 17:53:08

Hi;

Jai Ganesh · 2015-10-18 05:33:11

Hi bobbym,

If p, and q are real and , then determine the nature of the roots of the equation
.

356. Determime the nature of the roots of the equarion

.

Jai Ganesh · 2015-10-20 17:11:15

Hi bobbym,

Jai Ganesh · 2015-10-20 17:58:19

Hi,

357. How many prime numbers are there from 1 to 1000?

bobbym · 2015-10-22 01:16:43

Hi;

Jai Ganesh · 2015-10-22 06:52:44

Hi bobbym,

The solution 357 is perfect! Outstanding, bobbym!

358. Find the area of the triangle formed by joining the mid-points of the sides of the triangle whose vertices are (0,-1), (2,1), and (0,3). Also, find the ratio of the area of the triangle formed to the area of the given triangle.

Jai Ganesh · 2015-11-06 23:45:47

Hi,

359. Find the area of the quadrilateral ABCD whose vertices are respectively A (1,1), B (7,-3), C (12,2), and D (7,21).

bobbym · 2015-11-07 03:58:16

Hi;

Jai Ganesh · 2015-11-07 07:53:59

Hi bobbym,

The solution 359 is perfect! Remarkable!

360. The area of circle inscribed in an equilateral triangle is 154 square centimeters. Find the perimeter of the triangle. Use

.

bobbym · 2015-11-07 18:23:04

Hi;

Jai Ganesh · 2015-11-07 23:04:39

Hi bobbym,

The solution 360 is correct! Good work!

361. A park is in the form of a rectangle 120m x 100m. At the center of the park, there is a circular lawn. The area of the park excluding lawn is 8700 square meters. Find the area of the circular lawn.

.

Jai Ganesh · 2015-11-20 15:01:21

Hi bobbym,

362. The area of fencing a circular field at the rate of $24 per meter is $5280. The field is to be ploughed at the rate of $0.50 per square meter. Find the cost of ploughing the field.

Jai Ganesh · 2016-06-06 00:37:45

Hi;

363. Find the values of k for which the given equation has real and equal roots:

bobbym · 2016-06-06 09:26:29

Hi;

Jai Ganesh · 2016-06-06 23:01:34

Hi bobbym,

Neat work!

364. A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability
(a) of obtaining a total more than 9?
(ii) that the sum of the two numbers appearing on the top of the dice is 13?
(iii) that the sum of the numbers appearing on the top of the dice is less that or equal to 12?
(iv) that the product of the numbers appearing on the top of the dice is less than 9?
(v) that the difference of the numbers appearing on the top of the two dice is 2?

bobbym · 2016-06-07 03:37:35

Hi;

Jai Ganesh · 2016-06-07 07:30:09

Hi;

The five values of the problem 364 are correct. Excellent, bobbym!

365. Solve for x and y:

where

Math Is Fun Forum

#476 2015-10-07 06:33:52

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#477 2015-10-08 04:29:50

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#478 2015-10-08 07:35:23

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#479 2015-10-09 03:56:32

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#480 2015-10-10 17:24:04

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#481 2015-10-15 16:20:40

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#482 2015-10-16 22:18:02

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#483 2015-10-16 23:09:46

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#484 2015-10-17 17:53:08

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#485 2015-10-18 05:33:11

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#486 2015-10-20 17:11:15

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#487 2015-10-20 17:58:19

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#488 2015-10-22 01:16:43

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#489 2015-10-22 06:52:44

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#490 2015-11-06 23:45:47

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#491 2015-11-07 03:58:16

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#492 2015-11-07 07:53:59

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#493 2015-11-07 18:23:04

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#494 2015-11-07 23:04:39

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#495 2015-11-20 15:01:21

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#496 2016-06-06 00:37:45

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#497 2016-06-06 09:26:29

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#498 2016-06-06 23:01:34

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#499 2016-06-07 03:37:35

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#500 2016-06-07 07:30:09

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