Question

Cost of $105$ envelopes is$Rs.35$. How many envelopes can be brought for $Rs.10$ ?

Answer 1

STEP 1 : Finding the number of envelopes for Rs 1

Number of envelops for $Rs.35$ = $105$

Number of envelops for $Rs.1$ = $\frac{105}{35}=3$

STEP 2 : Finding the number of envelopes for Rs 10

Number of envelops for $Rs.10$ = $3\times 10=\hspace{0.17em}30$

Hence, the number of envelops bought for $Rs.10$ is $30$.