Question

If the cost of lo pens is 90 rupees then
What is the cost of 15 pens.​

Answer 1

Step-by-step explanation:

if the cost of 10 pen is 90rs

=90÷10

=9

each pen costs 9 rs

so 15pen = 15×9

=135

Answer- The cost of 15 pen is Rs 135

Answer 2

QUESTION:

If the cost of lo pens is 90 rupees then

If the cost of lo pens is 90 rupees thenWhat is the cost of 15 pens.

SOLUTION:

COST OF 10 PENS = RS 90

COST OF 1 PENS=

$\\ \\ \frac{90}{10} \: \: rs \: \: = \frac{9}{1} = 9 \: \: \: rs \:$

COST OF 15 PENS = Rs ( 9 * 15 ) = Rs 135 ( Answer)