Complete the series: 2, 4, 3, 9, 4, 16 ,5 ,25, 6,……?

A) 30

B) 33

C) 36

D) 40

There are two series: i) 2, 3, 4, 5, …… 

                                       ii) 4, 9, 16, 25, …..

In series (ii) :       4 + 5 = 9 

                            9 + 7 = 16

                            16 + 9 = 25

                             25 + 11 = 36

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A toy is sold for Rs. 220, what was the cost if the rate of profit was 10% of the cost?

A) Rs.196

B) Rs.198

C) Rs.200

D) Rs.210

Given Data 

S.P = 220     Gain=10%  C.P=?

We know that :

S.P=[ 100 +Gain]/100 * C.P 

We Have to find C.P, so re-arrange formula 

⇒ C.P= 100/[ 100 +Gain] * S.P

Putting given data:

⇒ C.P= 100/[ 100 +10] * 220

⇒ C.P=200

 

 

6, 9, 18, 45, 126, ….?

A) 369

B) 359

C) 329

D) 317

Multiply given number by 3,  After multiply subtract 9 from same number:

6*3=18-9=9

 9*3=27-9=18

18*3=54-9=45

45*3=135-9=126

126*3=378-9=369

 

 

 

Complete the series:

6, 9, 13, 16, 20, 23, ……..

A) 26, 30

B) 26, 31

C) 27, 30

D) 27, 31

First add 3 the 4 in whole series:

 6+3=9     ,      9+4=13

13+3=16 ,     16+4=20

20+3=23  ,     23+4=27

27+3=30

A man bought some toys at the Rs. 60 and sold them Rs.50. Find his loss percent?

A) 10%

B) 16.6%

C) 25.8%

D) 30%

As S.P<C.P , so we get loss 

Loss  = C.P-S.P 

          =60-50

         = 10

Now,

 Loss%= [ 100*Loss]/C.P 

            =[ 100*10]/60

            =16.6%

 

 

 

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