The value of 25 ÷ 15 of 4 x [4 ÷ 5 x ( 9 - 7)] - (20 ÷ 5 of 9) is :
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e.
Concept used :
BODMAS rule
Calculations :
25 ÷ 15 of 4 × [ 4 ÷ 5 × (9 - 7)] - (20 ÷ 5 of 9)
⇒ 25 ÷ 60 × [4/5 × 2] - (20/45)
⇒ (25/60) × (8/5) - 4/9
⇒ 2/3 - 4/9
⇒ (6 - 4)/9
⇒ 2/9