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22. There is a set of 9 numbers that relate to each other in a certain way. Find the way the first set of boxes works. The numbers in the second set work in exactly the same way. Find the missing value in the second set.

17 10 680
21 18 1512
7 1 28
12 25
17 4 272
22 19 1672

a. 1482
b. 1090
c. 1200
d. 374

Read Solution (Total 3)

17*10=170
170*4=680
21*18=378
378*4=1512
7*1=7
7*4=28
So, 12*25=300
300*4=1200 and is c
12 years agoHelpfull: Yes(45) No(3)

If terms are ABC
here C= 4*A*B

so missing term is 4*12*25 = 1200 --- option C
12 years agoHelpfull: Yes(15) No(0)
@Haripriya

From where did u get these questions?
12 years agoHelpfull: Yes(4) No(6)

TCS Other Question

20. Each of A,B and C need a certain unique time to do certain work. C needs 1 hour less than A to complete the work. Working together they require 30 minutes to complete 50% of the work. The work also gets completed if A and B start working together and A leaves after 1 hour and B works further 3 hours. How much work does C do per hour?

a. 16.66%
b. 66.66%
c. 50%
d. 33.33%
23. A sequence x1 , x2 and x3 … is said to be in a harmonic progression if the reciprocals 1/x1,1/x2 and 1/x3 are in arithmetic progression. The 5th term and the 7th term for an harmonic progression are 30 and 50 respectively. What is the difference between the 6th and 4th term.

a. 16
b. 14.5
c. 13.4
d. 12.5.