Quant Quiz – Approximation and Series – 13

Hello and welcome to exampundit. Here is a set of Quant Quiz on Simplification, Approximation and Series.

Q:1- (55)2 + (23)2 = (?)2 + 418

  1. 51
  2. 49
  3. 56
  4. 47
  5. None of these
Answer

Option: 3

Explanation:

→ 3025 + 529 = (?)2 + 418

→ 3554−418 =(?)2

→  3136    = (?)2

→ (?)    = 56

[Trick- 552=last 5  square –25 & first 5 multiply by next no i.e 6→5×6=30→3025[combine no.]

 

Q:2- 64.85 × 14.08 + √63.89 × 15.19 = √? × 206

  1. 21
  2. 25
  3. 28
  4. 29
  5. None of these
Answer

Option: 2

Explanation:

→  910 + 8 × 15 = √? × 206

→  1030/206 = √?

→√?  = 5

→ ?   =  25.

 

 

Q:3- (16.006)2 =(?-4.8) × 69.89 ÷ √195.87

  1. 49
  2. 51
  3. 59
  4. 56
  5. None of these
Answer

Option: 4

Explanation:

→ 256  = (? – 5)×70/14

→ 256  = (?-5)×5

→256+25=?×5

→281/5=?

→? = 56.2

→? ≈ 56.

 

Q:4- 59⅟6 + 79⅟4 + 98⅕=?

  1. 230
  2. 237
  3. 240
  4. 239
  5. None of these
Answer

Option: 2

Explanation:

=(59 + 79 + 98) + (1/6+1/4+1/5)

=236 + 37/60

=236.616

≈237.

 

Q:5- 63% of 962 + ? = 999
1. 346.92
2. 368.64
3. 392.94
4. 402.68
5. None of these

 

Answer

Option: 3

Explanation:

→ 606.06 + ? = 999

→ ? = 392.94.

 

Q:6- 8, 11, 16, 25, 40, ?

  1. 53
  2. 63
  3. 43
  4. 73
  5. none
Answer

Option: 2

Explanation:


 

Q:7- 25, 31, 49, 87, 153, ?

  1. 245
  2. 248
  3. 255
  4. 257
  5. none
Answer

Option:

Explanation:


 

 

Q:8- 4, 10, 30, 72, 144, ?

  1. 254
  2. 256
  3. 258
  4. 260
  5. none
Answer

Option: 1

Explanation:


 

Q:9- 15, 13, 23, 65, 255, ?

  1. 1261
  2. 1263
  3. 1267
  4. 1269
  5. none
Answer

Option: 4

Explanation:


 

Q:10- 25, 29, 93, 129, 641, ?

  1. 740
  2. 741
  3. 742
  4. 742
  5. none
Answer

Option: 2

Explanation: