$a : 2 = b : 5$ হলে $a, b$-এর কত % এর সমান হবে?
(a) 20
(b) 30
(c) 40
(d) 50
Moumita De Changed status to publish February 22, 2025
$a : 2 = b : 5$ Or, $\frac{a}{2} = \frac{b}{5}$ Or, $a = \frac{2}{5}\times b$ Or, $a = 0.4 \times b$ Or, $a = 40\%\times b$ Answer (C)
Sutanu Hait Edited answer February 22, 2025