Out of 100 sums, Rita could do 60 sums corretly. Out of 80 of those sums, Binoy could do 50 sums correctly. Express them in ratio to find, who got more sums correctly.

Out to 100 Sums, Rita got 60 sums correct out of 80 of those sums, Binoy got 50 sums correct. Let's express them in ratio to find, who get more sums correct.

If out of 20 consecutive whole numbers two are chosen at random, then find the probability that their sum is odd.

Rojina worked out 90 sums in 1 day. Shefali did 65 sums at the same time. Let's find what percentage of sums Rojina did more than Shefali. Let's find the percentage of sums Shafali did less than Rojina during that period of time.

The sum of two numbers is equal to 80. Three times of the difference of them is 20 more than the greatest number. Find the two numbers.

The sum of infinite number of terms in G.P. is 20 and the sum of their squares is 100. Then find the common ratio of G.P.

Rajeed, Debangana, Masuum and Tajmira can do 150 sums in 6 days. If each of them does equal number of sums everyday in how many days will Rajeeb and Tajmira finish 250 sums?

The least number of complete years in which a sum of money put out at 20% compound interest will be more than double is

A sum of 1000 is invested at 8% simple interest per year. Calculate the interest at the end of each year. Do these interests form an AP? If so, find the interest at the end of 30 years.

Each question has four choices, a,b,c and d,out of which only one is correct. Each question contains STATEMENT 1 and STATEMENT 2. a) if both the statements are true and statement 2 is the correct explanation of statement 1. b) If both the statements are true but statement 2 is not the correct explanation of statement 1. c) If statement is True and statement2 is false. d) If statement1 is false and statement2 is true. Statement 1: f(x)=(log)_ex cannot be expressed as the sum of odd and even function. Statement 2 : f(x)=(log)_e x in neither odd nor even function.