Question

The number of 25 paise coins in Rs 100 is
A. 4
B. 40
C. 100
D. 400

Answer 1

Hint: Here we will use the unitary method to find the answer. Firstly we will find the number of 25 paisa required to make 1 rupee by dividing the 1 rupee in terms of paisa by 25. Then we will multiply this number of paisa in 1 rupee with 100 to get the number of 25 paise in the Rs 100.

Complete step by step solution:
Firstly we have to find the number of 25 paisa in the 1 rupee.
We know that 1 rupee is equal to 100 paisa. So then we will divide 100 by 25 to get the number of 25 paisa in 1 rupee. Therefore, we get
Number of 25 paisa in 1 rupee \[ = \dfrac{{100}}{{25}} = 4\]
Now, we will multiply the number of 25 paisa in 1 rupee by 100 to get the number of 25 paisa in the Rs 100. Therefore, we get
Number of 25 paisa in Rs 100 \[ = 4 \times 100 = 400\]
Hence, the number of 25 paisa in the Rs 100 is 400.
So, option D is the correct option.

Note: Here, we should know that paisa and rupees are the Indian currency units. One rupee is equal to 100 paisa, 10000 paisa is equal to 100 rupee. We have to keep in mind that to find the number of 25 paisa we have to divide 100 by 25 not multiply 100 with 25. Paisa has a lower value than the rupee. So if we want to convert paisa into rupee we will multiply 100 and not divide.