Question 129

The average expenditure of a man for the first five months is Rs. 1200 and for the next seven months is Rs. 1300. Find his monthly average income if he saves Rs. 2900 during the year ?

Solution

Let his monthly salary be x rupees.

So, 5 (x - 1200) + 7 (x-1300) = 2900

12x - 6000 - 9100 = 2900

So, x = 18000/12 = 1500

Create a FREE account and get:

Download RRB Study Material PDF
45+ RRB previous papers with solutions PDF
300+ Online RRB Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Functions, Graphs and Statistics Questions CAT Linear Equations Questions CAT Time And Work Questions CAT Logarithms Questions CAT Arithmetic Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Data change over a period Questions CAT Special Charts Questions CAT 2D & 3D LR Questions CAT Coins and Weights Questions CAT Miscellaneous LR Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Verbal Ability Questions CAT Para Summary Questions CAT Reading Comprehension Questions CAT Para Jumbles Questions CAT Grammar and Sentence Correction Questions

Follow us on

Boost your Prep!

Download App