In some code, letters a, b, c, d and e represents numbers 2, 4, 5, 6 and 10. We just don't know which letter represents which number. Consider the following relationships:
i)   a + c = e,
ii)  b - d = d and
iii) e + a = b
Which statement below is true?

Which of the following number is divisible by 24 ?

1000¹⁰ ÷ 10²⁸ = ?

The ratio of two numbers is 3: 4 and their H.C.F is 4, Their L.C.M is:

If a*b=a2+b2 then 3*5 is equal to

A fraction, which bears the same ratio to 1/27, that 3/11 dose to 5/9 , is equal to

What is the remainder let after dividing 1!+2!+3!.....+10! by 7?

The number of distinct positive integers that can be formed using 0, 1, 2, 4, where each integer is used at the most once is equal to

Find the remainder when 2³¹ is divided by 5.

2664÷12÷6=?