Question
Calculate the % change in Anuradha's monthly expenditure
when her income experiences a 32% increase, while her monthly savings, which normally accounts for 60% of her income, remains constant.Solution
ATQ, Let monthly income of Anuradha is Rs. 100a. Monthly savings of Anuradha = 0.60 × 100a = Rs. 60a Monthly expenditure of Anuradha = 100a – 60a = Rs. 40a Increased monthly income of Anuradha = 1.32 × 100a = Rs.132a Monthly expenditure now = 132a – 60a = Rs. 72a Percentage increase in monthly expenditure = [(72a – 40a)/40a] × 100 = 80%
What approximate value should replace the question mark?
12.45% of 640.20 − 60% of 2500 = ? − 9000.10
`[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=` ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
What value should come in place of question mark (?) in the following question. (You need not to calcualte the exact value)
?/647 = 226/ ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
A, B & C have Rs.1550 together. If they divide the money in the ratio 1:3:1 respectively. Find the difference of amount received by B and C.
What approximate value should come in the place of (?) in the following questions?
∛(92.8 + √1025) * ? = 16.06% of 750
√1024.21 × √624.89 ÷ 4.98 + 11.99 × 4.01 = ?
√784 × 3 + (713.99 ÷ 6.98) = ?% of 619.99
11.11% of (123.45 + 234.56) + 10.01³ - (5.05 of 7.07) = ? of (88.88 - 33.33)
Relevant for Exams:
