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Q:
The price of sugar increases by 15%. By what percentage should the consumption of sugar be decreased so that the expenditure on the purchase of sugar remains the same? [Give your answer correct to 2 decimal places.]
1006 0

Answer : 4. "13.04%"
Explanation :
To solve this problem, let's denote:
Initial price of sugar = P
Initial quantity consumed = Q
Initial expenditure = PQ
After the price increases by 15%, the new price becomes 1.15P.
To keep the expenditure constant, the new quantity consumed (let's call it Q') can be calculated using the formula:
New expenditure = New price × New quantity
Setting the new expenditure equal to the initial expenditure:
PQ = (1.15P) * Q'
Now, solve for Q':
Q' = PQ / (1.15P)
Simplify:
Q' = Q / 1.15
Now, let's find the percentage decrease in consumption:
Percentage decrease = [(Q - Q') / Q] * 100
Substituting the value of Q':
Percentage decrease = [(Q - (Q / 1.15)) / Q] * 100
Percentage decrease = [(Q * (1 - 1/1.15)) / Q] * 100
Percentage decrease ≈ [(1 - 0.8696) * 100] ≈ 13.04%
Therefore, the consumption of sugar should be decreased by approximately 13.04% to keep the expenditure on the purchase of sugar the same after a 15% increase in price.

Q:
The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?
1002 0

Answer : 3. "80%"

Q:
After an increase in tea price by 40% a family reduce its consumption of tea to the extent that there should be an increase on tea expense only by 10%. If the earlier consumption of tea was 28 kg, then what will be their new consumption?
999 0

Answer : 2. "22 kg"

Q:
Two numbers are more than the third number by 20 % and 50 % respectively. Find the first number is what percent of the second number?
996 0

Answer : 1. "80% "

Q:
Products pass successively through the hands of three traders and each of them sells his goods at a profit of 30% of his cost price. If the last trader sold the products for Rs.300, then how much did the first trader pay for them?
993 0

Answer : 2. "Rs.136.55 (approx)"

Q:
72 grams is what percent of 3.6 kilograms?
989 0

Answer : 4. "2"

Q:
Due to 20% reduction in the price of wheat, a person can buy 10 kg more wheat than before for Rs 600, what is the price of wheat after the decrease in the price?
983 0

Answer : 3. "Rs.12 per kg"

Q:
There were two candidates in an election, total 7500 votes were cast, 20% of these votes were declared invalid, if one candidate got 55% of the valid votes then how many valid votes did the other candidate get?
978 0

Q: The price of sugar increases by 15%. By what percentage should the consumption of sugar be decreased so that the expenditure on the purchase of sugar remains the same? [Give your answer correct to 2 decimal places.] 1006 0643d140332185cce373eec85

Q: The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student? 1002 0638dd3e09ebad6607b985e0c

Answer : 3. "80%"

Q: After an increase in tea price by 40% a family reduce its consumption of tea to the extent that there should be an increase on tea expense only by 10%. If the earlier consumption of tea was 28 kg, then what will be their new consumption? 999 05f2cf951b57ade01caff2d9e

Answer : 2. "22 kg"

Q: Two numbers are more than the third number by 20 % and 50 % respectively. Find the first number is what percent of the second number? 996 05f1a84e88ae6514e222c2ead

Answer : 1. "80% "

Q: Products pass successively through the hands of three traders and each of them sells his goods at a profit of 30% of his cost price. If the last trader sold the products for Rs.300, then how much did the first trader pay for them? 993 064abe2eb8c254a4ceae36f8b

Answer : 2. "Rs.136.55 (approx)"

Q: 72 grams is what percent of 3.6 kilograms? 989 0632286c669fe1d77bc0630e1

Answer : 4. "2"

Q: Due to 20% reduction in the price of wheat, a person can buy 10 kg more wheat than before for Rs 600, what is the price of wheat after the decrease in the price? 983 06319b35f6a86583500fe6dd9

Answer : 3. "Rs.12 per kg"

Q: There were two candidates in an election, total 7500 votes were cast, 20% of these votes were declared invalid, if one candidate got 55% of the valid votes then how many valid votes did the other candidate get? 978 06319b25e4c69013ac89cbe31

Answer : 2. "2700"

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Q:
The price of sugar increases by 15%. By what percentage should the consumption of sugar be decreased so that the expenditure on the purchase of sugar remains the same? [Give your answer correct to 2 decimal places.]
1006 0

Q:
The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?
1002 0

Q:
After an increase in tea price by 40% a family reduce its consumption of tea to the extent that there should be an increase on tea expense only by 10%. If the earlier consumption of tea was 28 kg, then what will be their new consumption?
999 0

Q:
Two numbers are more than the third number by 20 % and 50 % respectively. Find the first number is what percent of the second number?
996 0

Q:
Products pass successively through the hands of three traders and each of them sells his goods at a profit of 30% of his cost price. If the last trader sold the products for Rs.300, then how much did the first trader pay for them?
993 0

Q:
72 grams is what percent of 3.6 kilograms?
989 0

Q:
Due to 20% reduction in the price of wheat, a person can buy 10 kg more wheat than before for Rs 600, what is the price of wheat after the decrease in the price?
983 0

Q:
There were two candidates in an election, total 7500 votes were cast, 20% of these votes were declared invalid, if one candidate got 55% of the valid votes then how many valid votes did the other candidate get?
978 0