Question

If $\frac{11}{4}=\frac{77}{x}$, then x =

(a) 28

(b) $\frac{77}{28}$
(c) 44

(d) 308

Answer 1

(a) 28

$\frac{11}{4}=\frac{77}{x}$
On cross-multiplying, we get:
$11\times x=77\times 4$

$\mathrm{x}=\frac{77\times 4}{11}=\frac{7\times 11\times 4}{11}\mathrm{On}\mathrm{dividing}\mathrm{both}\mathrm{the}\mathrm{numerator}\&\mathrm{denominator}\mathrm{by}11,\mathrm{we}\mathrm{get}28.$