Kavya

Answer to: A man buys a certain number of oranges at 20 for Rs.60 and an equal number at 30 for Rs.60. He mixes them and sells them at 25 for Rs.60. What Is gain or loss per cent

Let the man buy $\large 60$ oranges (LCM of $\large 20$ and $\large 30$) of each kind.

CP...

Answer to: If sinA + sin2A = 1 then what is the value of cos2A + cos4A?

Given,

sinA + sin²A = 1

⇒ sinA = 1 – sin²A = cos...

Answer to: There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field, while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at the same time, and go in the same direction. After how many

If you read the question carefully you will find that you need to find the LCM of 18 and 12 to ge...

Answer to: Simple interest on a certain sum at 7 p.c.p.a for four years is Rs. 3584. What will be the compound interest on the same principal at 4 p.c.p.a. in two years ?

Solution...

Answer to: A 4-bit synchronous counter uses flip-flops with propagation delay of 25 ns each. The time required for change of state to 0000 from 1111 is

In synchronous counter all the flip flops change their states simultaneously

The time req...