# Set-20 Simplification/Approximation For SBI PO and SBI Clerk 2019 | Must Go Through These Questions

Dear Aspirants,
We are providing the most important Simplification/Approximation Questions for SBI PO 2019, SBI Clerk 2019 and all other competitive bank and insurance exams. These questions have very high chances to be asked in SBI PO 2019, SBI Clerk 2019.

Directions:(1-10) What value will come in place of question mark (?) in the following question?

1. 60 x 71 – 21 x 17 = (?)2 x 2 + 375

2. ∛512 + ∛6859 + ∛3375 = ?

3. (142 x 23 + 33 x 18 + ?)½ = 79

4. (0.09)99 ÷ 0.02756 x 0.0923 x 0.316 = (0.3)?

5. 83.33% of 30 + 33.33% of 51 + 66.66% of 21 = ?

6. 85% of √9216 + 30% of 372 = ? + 155

7. 23 X 85 – 55 x √841 = ?

8. 55% of 46 ÷ 0.01 = ? x 20

9. 67% of 300 + 33% of 800 – 18% of 1100 = ?

10. 30.3 x 243 x 271.3 x 90.2=27?

• Directions:(1-10) What value will come in place of question mark (?) in the following question?

##### 1. Question

60 x 71 – 21 x 17 = (?)2 x 2 + 375

Ans: 3
(?)2 x 2 = 60 x 71 – 21 x 17 – 375(?)2 x 2 = 4260 – 357 – 375 = 3528(?)2 = 1764

? = 42

##### 2. Question

∛512 + ∛6859 + ∛3375 = ?

Ans: 4
83 = 512, 193 = 6859, 153 = 3375? = ∛512 + ∛6859 + ∛3375= 8 + 19 + 15 = 42

##### 3. Question

(142 x 23 + 33 x 18 + ?)½ = 79

Ans: 5
Squaring both sides:142 x 23 + 33 x 18 + ? = 792 = 6241? = 6241 – 142 x 23 – 33 x 18
? = 6241 – 4508 – 486 = 1247

##### 4. Question

(0.09)99 ÷ 0.02756 x 0.0923 x 0.316 = (0.3)?

Ans: 5
(0.32)99 ÷ (0.33)56 x (0.32)23 x (0.31)16 = (0.31)?(0.3)(2×99 – 3×56 + 2×23 + 1×16) = (0.31)?So, ? = (2×99 – 3×56 + 2×23 + 1×16)/1 = 92

##### 5. Question

83.33% of 30 + 33.33% of 51 + 66.66% of 21 = ?

Ans: 4
We note that 83.33% = 5/6, 33.33% = 1/3, 66.66% = 2/3
So, ? = 30 x (5/6) + 51 x (1/3) + 21 x (2/3)
= (6 x 5) x (5/6) + (3 x 17) x (1/3) + (3 x 7) x (2/3)
= (5 x 5) + (1 x 17) + (2 x 7) = 56
##### 6. Question

85% of √9216 + 30% of 372 = ? + 155

Ans: 5
(85 x 96 + 30 + 1369)/100 = ? + 155? = 49230/100 – 155 = 337.3
##### 7. Question

23 X 85 – 55 x √841 = ?

Ans: 3
23 x 85 – 55 x 29 = ?=> ? = 1955 – 1595 = 360
##### 8. Question

55% of 46 ÷ 0.01 = ? x 20

Ans: 1
? x 20 = 55% of 4600 = 2530=> ? = 2530/20 = 126.5
##### 9. Question

67% of 300 + 33% of 800 – 18% of 1100 = ?

Ans: 3
? = 67×3 + 33×8 – 18×11= 201 + 264 – 198 = 267
##### 10. Question

30.3 x 243 x 271.3 x 90.2=27?

Ans: 2
30.3 x 243 x 271.3 x 90.2=27?30.3 x 35 x 3(3 x 1.3) x 3(2 x 0.2)=3(3 x ?)
3(0.3+5+3.9+0.4)=3(3 x ?)
39.6= 3(3 x ?)Equating the powers on both sides
9.6 = 3 x ?
? = 3.2