Question
'R' spends 30% of his monthly income on utilities, 35%
on household expenses, and 10% of the remaining amount on transportation. He saves the rest in a savings account that gives simple interest at a rate of 12% per annum. Find the amount 'R' will get at the end of the year if his spending on transportation is Rs. 800 per month.Solution
Let monthly income = Rs. 100z Spending on utilities = 100z × 0.3 = Rs. 30z Spending on household expenses = 100z × 0.35 = Rs. 35z Spending on transportation = (100z – 30z – 35z) × 0.1 = Rs. 3.5z Savings = 100z – 30z – 35z – 3.5z = Rs. 31.5z Now, 3.5z = 800 Or, 31.5z = 7200 Total interest paid by the savings account: = P × r × t = 7200 × 12 × 1/100 = Rs. 864 Amount = 7200 + 864 = Rs. 8064
Which of the following number is rational number?
One baker house has to make 600 cakes and another one 750 cakes during the same period of time. In the first house, the order was ready 5 days ahead of ...
- A number when divided by 45 leaves 38 as remainder. If the same number is divided by 15, the remainder would be:
A positive number becomes 9 times its reciprocal when 3 is added to it. Find this number.
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 30 and ratio of the 4th and the 5th number is 2:3. If difference between t...
The sum of three consecutive even numbers is 84. Find the middle number.
- Find the remainder when the number (289n + 119) is divided by 17.
The divisor is 35 times the quotient and 7 times the remainder. If the quotient is 18, the dividend is :
On dividing (5757 + 57) by 58, the remainder obtained is ‘R’. Find the value of (R – 5).
Find the last digit of (12123 – 1).
Relevant for Exams:
