6138.85 + 2015.819 = ? + 2584.0259

(704 x 555) ? 55 = ?

The remainder, when (15²³ + 23²³) is divided by 19, is?

0.02 x 0.5 = ?

7 x ? =29.05

The unit’s digit in the product 274 x 318 x 577 x 313 is :

(1331)^-2 ÷ (14641)^-3 = (11)^? * (121)

Two numbers, both greater than 29, have H.C.F. 29 and L.C.M. 4147. The sum of the numbers is:

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 ?