Question

Q 17. 27, 57, ?, 705, 3531
Oa) 171
Ob) 175
Oc) 178
Od) 169
fill the series​

Answer 1

Answer:

Step-by-step explanation:

175

Answer 2

The missing number is 175.

complete series is 27, 57, 175, 705, 3531

Option 'd' is correct.

Given:

• 27, 57, ?, 705, 3531

To find:

• Find the missing number in the series.
• a) 171
• b) 175
• c) 178
• d) 169

Solution:

Step 1:

Analysis of the pattern formation.

If we observe the numbers 27, 57, ?, 706, 3531

We can judge that the series is multiplication series.

So,

$(27 \times 2 )+ 3 = 54 + 3$

$\bf (27 \times 2 )+ 3 = 57$

Similarly

$(57 \times 3) + 4 = 171 + 4$

$\bf (57 \times 3) + 4 = 175$

Thus,

The next number is 175.

Step 2:

Verify the remaining numbers.

Apply the same pattern to verify the remaining numbers.

$(175 \times 4) + 5 = 700 + 5$

$\bf (175 \times 4) + 5 = 705$

similarly

$(705 \times 5) + 6 = 3525 + 6$

$\bf (705 \times 5) + 6 =3531$

Thus,

The missing number is 175.

Option 'd' is correct.

Learn more:

1) Which of the following numbers doesn't fit the below series 343,512,729,1000,1329

https://brainly.in/question/47751863

2) if 34×21=62 94×67=88 then 87×34=

a 16

b 22

c 8

d 2

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