Question

A number wy is multiplied by another number ab and
the result comes as pgr, where r = 2y, q = 2(x + y)
and p = 2x where x, y < 5,9 = 0. The value of ab
may be
(a) 11
(c) 31
(b) 13
(D) 22​

Answer 1

Answer:

D 22

Step-by-step explanation:

A number xy is multiplied by another number ab and the result comes as pqr, where r = 2y, q = 2(x + y) and p = 2x where x, y < 5, q = 0. The value of ab may be:

Answer Options:   11

   13

  31

   22

Answer 2

Answer:

(D)22

Step-by-step explanation:

xy×ab=pqr

acc to question

xy×ab=(2x)×{2(x+y) }×(2y)

⇒ xy×ab = 4xy×{2(x+y)}

⇒ab= 8(x+y)

now possible values of x & y are 0 ,1 ,2, 3 ,4 substituting it

we get for only x=2 y=1 or x=1 y=2 option (d) is possible .