exam Exam Numerical Ability

A loan of Rs 127500 is to be paid back in two equal half-yearly instalments. If interest is compound half-yearly at 8% per annum ,then each instalment is of

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In this question x^y stands for x raised to the power y. For example 2^3=8 and 4^1.5=8. Find the number of positive integers n>2000 which can be expressed as n=2^m+2^n where m and n are integers (for example, 33=2^0+2^5) a equilateral triangle p has area 100*3^1/2 cm^2 . if second triangle is made by joining mid points of p and similarly R is made by joining mid points of Q . find the sum of perimeters of triangle P,Q,R,...etc