Question

15 pencils cost rupees 52.5. (i) what will be the cost of 36 pencil (2)how many pencils can we buy for 91 ruppees?​

Answer 1

Step-by-step explanation:

Total no. of pencils=15

Cost of 15 pencils=Rs.52.5

Cost of 1 pencil=52.5/15=Rs.3.5

1.Cost of 36 pencils=3.5×36=Rs.126

2.Let x be the no. of pencils we can buy for Rs.91

x×3.5=91

x=91/3.5

x=26

we can buy 26 pencils for 91 ruppees

Answer 2

Answer:

(i) Rs 126

(ii) 26

Step-by-step explanation:

cost of 15 pencils = Rs 52.5

cost of 1 pencil = Rs 52.5/15

                         = Rs 7/2

(i) cost of 36 pencils = Rs 36 * 7/2

                                  = Rs 126

so cost of 36 pencils is Rs 126

(ii) let x number of pencils can be bought for Rs 91

                   => x * 7/2 = 91

                   => x = (91*2)/7

                   => x =26                                                                  

so 26 pencils can be bought for Rs 91.