How to solve this question

[Chitra]

[Pradeep]

There's only one option that's a multiple of 41.

[Pankaj]

Just look at the options – only 123 is a multiple of 41.

[Vishal]

You can either compute 2475 × 41% ÷ (15% × 55%) = 2475 × 41 × 100 ÷ (15 × 55) = 12,300 – just handle the arithmetic.

Or, since you're multiplying by a prime and nothing divides it, just pick the option that's a multiple of 41. Only 12,300 fits.

[Tushar]

Start with X × 15% × 55% = 2475.

That means X × 3/20 × 11/20 = 2475.

So X = 2475 × 20/3 × 20/11.

X = 825 × 20 × 20/11.

X = 75 × 20 × 20.

Now X × 41% = 75 × 20 × 20 × 41/100.

=> 1500 × 41/5.

=> 300 × 41.

=> 12300.

[Payal]

2475 × 100/55 × 100/15 = 30,000.

Then 30,000 × 41% = 12,300.

[Norman]

In this new 15-minute format, try to get comfortable with numbers.

For example, 2475 = 25×99 = 55×45 = 11×225 = 15×165 and so on.

[Harendra]

The method is shown below, and you can also verify it by checking the option that's a multiple of 41.