10 second questions

bobbym · 2012-09-19 19:48:43

Hi;

Jai Ganesh · 2012-09-20 16:17:14

Hi bobbym,

The solutions #4322 and #4323 are correct. Excellent!

#4324. The population of a town increases by 5% annully. If its population in 2001 was 138915, what was it in 1998?

#4325. The value of a machine depreciates at the rate of 10% every year. It was purchased 3 years ago. If its present value is $8748, what was its purchase price?

bobbym · 2012-09-20 20:22:47

Hi;

Jai Ganesh · 2012-09-21 13:14:45

Hi bobbym,

The solutions #4324 and #4325 are correct. Good work!

#4326. The population of a town increases 4% annully but is decreased by emigration to the extent of 0.5% What would the increase percent in 3 years?

#4327. The current birth rate per thousand is 32, whereas corresponding death rate is 11 per thousand. What is the net growth rate in terms of population increase in percent?

bobbym · 2012-09-21 19:27:32

Hi;

Jai Ganesh · 2012-09-22 23:15:47

Hi bobbym,

The solution #4327 is perfect. Good work!

#4328. A's salary is 50% more than B's. How much percent is B's salary less than A's?

#4329. If A's height is 40% less than of B, how much percent B's height is more than that of A?

bobbym · 2012-09-23 01:20:28

Hi;

Jai Ganesh · 2012-09-23 22:48:17

Hi bobbym,

The solutions #4328 and #4329 are correct. Good work!

#4330. Two numbers are less than a third number by 30% and 37% respectively. How much percent is the second number less than the first?

#4331. Two numbers are respectively 12.5% and 25% more than a third number. What is the first number as a percentage of the second number?

bobbym · 2012-09-23 22:59:16

Hi;

Jai Ganesh · 2012-09-24 22:54:11

Hi bobbym,

The solutions #4330 and #4331 are correct. Brilliant!

#4332. 5% of income of A is equal to 15% of income of B and 10% of income of B is equal to 20% of income of C. If C's income is $2000, then what is the total income of A, B, and C?

#4333. Peter earned 40% more money than Albert. Albert earned 20% less than Michael. By what percent Peter earned more than Michael?

bobbym · 2012-09-24 23:47:28

Hi;

Jai Ganesh · 2012-09-25 19:46:51

Hi bobbym,

The solution #4333 is correct. Good work!

#4334. How much pure alcohol has to be added to 400 milliliters of a solution containing 15% alcohol to change the concentration of alcohol in the mixture to 32%?

#4335. Milk contains 5% water. What quantity of pure milk ought to be added to 10 liters of milk to reduce this to 2%?

bobbym · 2012-09-25 21:11:19

Hi;

Jai Ganesh · 2012-09-26 16:57:36

Hi bobbym,

The solutions #4334 and #4335 are correct. Marvelous!

#4336. To a sugar solution of 3 liters containing 40% sugar, one liter of water is added. What is the percentage of sugar in the new solution?

#4337. One type of liquid contains 20% water and the second type of liquid contains 35% of water. A glass is filled with 10 parts of first liquid and 4 parts of second liquid. What is the percentage of water in the new mixture in the glass?

bobbym · 2012-09-26 20:23:38

Hi;

Jai Ganesh · 2012-09-27 16:42:29

Hi bobbym,

The solutions #4336 and #4337 are correct. Superlative!

#4338. The price of rice is reduced by 2%. How many kilograms of rice can now be bought for the money which was sufficient to buy 49 kilograms of rice earlier?

#4339. A reduction of 21% in the price of wheat enables a person to buy 10.5 kilograms more for $100. What is the reduced price per kilogram?

bobbym · 2012-09-27 18:32:51

Hi ganesh;

Jai Ganesh · 2012-09-28 20:21:21

Hi bobbym,

The solution #4338 is correct. Excellent!

#4340. The price of sugar having gone down by 10%, Sally can buy 6.2 kilograms more for $279. What is the difference between the original and the reduced price per kilogram?

#4341. In an examination, 34% of the students failed in Mathematics and 42% failed in English. If 20% of the students failed in both the subjects, then what is the percentage of students who passed in both the subjects?

bobbym · 2012-09-28 22:12:32

Hi;

Jai Ganesh · 2012-09-29 17:30:40

Hi bobbym,

The solutions #4340 and #4341 are correct. Excellent!

#4342. Out of 450 students of a school, 325 play football, 175 play cricket and 50 neither play football nor cricket. How many students play both football and cricket?

#4343. In a hotel, 60% had vegetarian lunch while 30% had non-vegetarian lunch and 15% had both types of lunch. If 96 people were present, how many did not eat either type of lunch?

bobbym · 2012-09-29 23:56:08

Hi ganesh;

Jai Ganesh · 2012-09-30 16:51:08

Hi bobbym,

The solutions #4342 and 4343 are correct. Marvelous!

#4344. In a certain office, 72% of the workers prefer tea and 44% prefer coffee. If each of them prefers tea or coffee and 40 like both, find the total number of workers in the office.

#4345. In an examination, 65% students passed in civics and 60% in history, 40% passed in both of these subjects. If 90 students failed in history and civics both, then what is the total number of students?

bobbym · 2012-09-30 21:31:28

Hi;

Jai Ganesh · 2012-10-01 17:22:55

Hi bobbym,

The solutions #4344 and #4345 are correct. Brilliant!

#4346. Rahul purchased a motorbike at 13/15 of its selling price and sold it at 12% more than its selling price. What is his gain percent?

#4347. A man buys an article for 10% less than its value and sells it for 10% more than its value. What is his gain or loss percent?

bobbym · 2012-10-01 21:21:16

Hi;

Math Is Fun Forum

#4176 2012-09-19 19:48:43

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