Question

please explain that the reason ​

Answer 1

3 friends bought 3 toys

rach toy is 10 rupees

so,3×10=30

then,the shopkeeper gave 5rupees discount

30-5=25

with the remaining 5 each took 1 rupee

so 28

the remaining 2 rupees was given to beggar

so,28+2=30

HENCE PROVED