Approximation Test-6 (Approximation of decimal figures)

Answer: Option B

Explanation

Given,

1595÷25×36.5=?

It can also be approximated as

1595÷25×37=? [applying BODMAS]

= 64×37

= 64(40-3)

= 2560-192

= 2368 ≈ 2329

Hence, Option B is correct.

Answer: Option A

Explanation

Given,

182.225×21.652×22.584=?

It can also be approximated as

183×21×34=?

= 180×20×35 [ to simplify easily]

= 180×700

= 126000 ≈ 132507

Hence, Option A is correct.

Answer: Option B

Explanation

Given,

63.5% of 8924.2 + ?% of 5324.4 = 6827.5862

It can also be approximated as

64% of 8924.2+?% of 5324.4=6850

= 89×64+?×$\frac{5300}{100}$=6850

= 90×64+?×53=6850

= 5760+?×53=6850

= 6850-5760=?×53

= 1090=?×53

=$\frac{1100}{53}$

= 20.75 ≈ 22

Hence, Option B is correct.

Answer: Option B

Explanation

Given,

(632.46)²=?

It can also be written as

(632.46)²=?

= (630)²= 396900

[Since, we decrease the value,

hence value of given expression must be greater than 396900 ]

So, its value is 400000 approx.

Hence, option B is correct.