IIM-B (BBA-DBE) 2024 #2 (QA) PYQs

If $a\times b=2 a-3 b+a b$,then $3 \times 5+5 \times 3$ is equal to

If $\dfrac{a}{b+c}=\dfrac{b}{c+a}=\dfrac{c}{a+b}=k$ then value of $k$ is

A cashier has ₹ 620 in the denominations of two-rupee notes, ten-rupee notes and fifty-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he/she has ?