Question
Sam invested a certain sum in scheme A for 5 years and
in scheme B for 3 years, a sum which was double of that invested in scheme A. Both the schemes offer simple interest at the rate of 8% p.a. The difference between the amounts received from both the schemes was Rs. 12960. How much did Sam invest in scheme A?Solution
Let the sum inveseted by Sam in scheme A is Rs x and sum invested by Sam in scheme B is Rs 2x Now according to the question, {2x + (8 x 3 x 2x)/100} - {x + (8 x 5 x x)/100} = 12960 248x/100 - 140x/100 = 12960 108x/100 = 12960 x = 12000 Hence, Sam invest in scheme A = Rs 12000
What is the percentage change in the result when we add 36 to a certain number x, instead of subtracting 36 from the same number x?
The salary of X is 50% more than Y, and the allowance of Z is 200 more than the difference of salaries of X and Y. If Z's allowance is 350, then find X'...
Chetan’s monthly salary is equal to 36% of Chintu’s monthly salary. Chintu’s monthly salary is Rs. 32000 less than Chirag’s monthly salary. If ...
Rohit scored 150 runs in a match which was 75% of the total team score. If the team scored 20 runs as extras, then find the runs scored by the rest of t...
 In a group of 100 people, 70 like coffee, 50 like tea, and 30 like both coffee and tea. How many people in the group do not like either coffee or tea?...
A retailer buys three types of Rice bags at ₹60, ₹40 and ₹20 per kg respectively. He mixes them in the ratio of 1:2:3 by weight and sold them at a...
Out of her total income, Pooja spent 10% on groceries, 15% on transport and 25% on rent. If she spent 40% of the remaining on entertainment and saved th...
Two numbers are less than a third number by 30% and 37%, respectively. By how much percent is the second number less than the first?
A contractor assigns 60% of his workers to a project. However, due to budget cuts, he reduces the workforce by 25%. If the initial workforce was 160 wor...
In a society, 20% of residents enjoy swimming and 35% enjoy running. If 5% enjoy both activities and the rest, which amounts to 18 residents, enjoy neit...
Relevant for Exams:
