Question (15/93)
Value of expression (7.5 * 7.5 + 37.5 + 2.5 * 2.5) is equal to ?(A)  30
(B)  60
(C)  80
(D)  100
Question (16/93)
The value of expression `(4.2 xx 4.2 - 1.9 xx 1.9)/(2.3 xx 6.1)` is ?(A)  0.5
(B)  1.0
(C)  1.5
(D)  2.0