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If 10 apples are bought for ₹ 11 and sold at the rate of 11 apples for ₹ 10. Find the overall gain or loss per cent in these transactions.
24, 36, x are in continued proportion, find the value of x.
What per cent of 40 kg is 440 g?
Find the ratio of:
(a) 5 km to 400 m
(b) 2 hours to 160 minutes
What sum of money lent out at 12 per cent p.a. simple interest would produce ₹ 9000 as interest in 2 years?
Bhavya earns ₹ 50,000 per month and spends 80% of it. Due to pay revision, her monthly income increases by 20% but due to price rise, she has to spend 20% more. Find her new savings.
₹ 9000 becomes ₹ 18000 at simple interest in 8 years. Find the rate per cent per annum.
State whether the following ratios are proportional or not:
(i) 20 : 45 and 4 : 9
(ii) 9 : 27 and 33 : 11
Find:
(i) 36% of 400
(ii) 16 2/3% of 32
State whether the following ratios are equivalent or not?
(a) 2 : 3 and 4 : 5
(b) 1 : 3 and 2 : 6
Rajan’s monthly income is 20% more than the monthly income of Sarita. What per cent of Sarita’s income is less than Rajan’s monthly income?
What per cent of
(a) 64 is 148.48?
(b) 75 is 1225?
A machine is sold by A to B at a profit of 10% and then B sold it to C at a profit of 20%. If C paid ₹ 1200 for the machine, what amount was paid by A to purchase the machine?
The cost of an object is increased by 12%. If the current cost is ₹ 896, what was its original cost?
Find a number whose 6 1/4% is 12.
Convert each of the following into the decimal form:
(а) 25.2%
(b) 0.15%
(c) 25%
Rashmi obtains 480 marks out of 600. Rajan obtains 560 marks out of 700. Whose performance is better?
Radhika borrowed ₹ 12000 from her friends. Out of which ₹ 4000 were borrowed at 18% and the remaining at 15% rate of interest per annum. What is the total interest after 3 years?
The simple interest on a certain sum at 5% per annum for 3 years and 4 years differ by ₹ 82. Find the sum.
Find the mean proportional between 9 and 16.
