1.

What will come in place of question mark (?) in the following question?25% of 84 × 24% of 85 = ?1. 144.42. 244.43. 428.44. 333.4

Answer» Correct Answer - Option 3 : 428.4

Given: 

25% of 84 × 24% of 85 

Concept used:

a% of N = (a/100) × N

where N and a are natural number 

Calculation:

25% of 84 × 24% of 85 

⇒ (25/100) × 84 × (24/100) × 85 

⇒ (84/4) × (102/5)  

⇒ (21 × 102)/5 = 428.4

∴ The value of '?' is 428.4



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