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
How many pairs of letters are there in the word "SUITCASE" which has as many letters between them (in both forward and backward direction) in the word ...
If the digits of 5679432018 are rearranged in descending order, what is the sum of the 1st, 2nd, 4th, 7th, and 9th digits?
How many pairs of digits are there in the number “79384823”, which has as many digits between them in the number (both forward and backward) as in t...
If in the word "TEACHER", all the consonants are changed to the 3rd preceding and all the vowels are changed to the immediately preceding letter as per ...
If all the letters of the word ‘ MANCHURIAN ’ are replaced by second succeeding letter then the letters is arranged in alphabetical order, which let...
How many pairs of letters are there in the word “DURABILITY” which has as many letters between them in the word as in the alphabetical series?
- If we arrange all the vowels of the word "DIAMONDS" in ascending order first and then all the consonants in ascending order as per English alphabetical ser...
In a row of letters, a letter is 7th from left end and 15th from the right end. How many letters are there in a row?
Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the...
- If all the alphabets of the word ‘DICTIONARY’ are interchanged i.e. first and last, second and second last and so on, then which alphabet fourth to the...
Relevant for Exams:
