Question

Pihu is counting the number of equipment being used in making the chocolate cake.


Identify the first number by filling the missing digits.

• A. 4, 22, 542
• B. 4, 21, 592
• C. 4, 29, 552
• D. 4, 20, 582

Answer 1

The correct option is C 4, 29, 552

In the given question, few digits of the first number are missing.


We have to perform addition and subtraction simultaneously to identify the correct number.


So 2 + 9 = 11. We regroup it as 1 ten and 1 ones.

We can observe that 1 + 5 + 6 = 12. We regroup it as 1 hundred and 2 tens.

So, the first missing digit from the right is 5.

Continuing in this process, we get:
1 + 5 + 3 = 9

9 + 1 = 10

So, the second missing digit from the right is 9.

1 + 2 + 6 = 9

Finally, 4 will be brought down as it is.

Hence, the first number used here is 4, 29, 552.