IBPS PO Prelims 3 oct 2020 - Category wise Question and Answer Practice Test with Solutions & PDF

Answer: (d)

?² = 468.02 + 79.91 ÷ 5.01

≈ 468 + 80 ÷ 5

= 468 + 16

= 484 = 22²

⇒ ? = 22

Answer: (e)

?= 49.99% of 6400.002 ÷ 999.99

≈ 50% of 6400 ÷ 1000

= 3200 ÷ 1000 = 3.2

Answer: (a)

? ÷ 2.997 + 799.98 × 8.9 = 9199.978

After approximation, we get

? ÷ 3 + 800 × 9 = 9200

⇒ ? = (9200 – 7200) × 3 = 2000 × 3 = 6000.

?= 49.99% of 6400.002 ÷ 999.99

≈ 50% of 6400 ÷ 1000

= 3200 ÷ 1000 = 3.2

Answer: (a)

(1110.02 + 89.81) ÷ ? – $√{15}$ = 15.98

After approximation, we get

(1110 + 90) ÷ ? – 4 = 16

⇒ 1200 ÷ ? = 16 + 4 = 20

⇒ ? = 1200 ÷ 20 = 60

Answer: (d)

? × 350.01 ÷ 3.99² = 983 ÷ 14.001

After approximation, we get

? × 350 ÷ 16 = 980 ÷ 14

⇒ ? × 350 ÷ 16 = 70

⇒ ? = (70 × 16) ÷ 350 = 3.2