find the Missing term
Answers
Solution!
In order to find the missing term, we have to find a pattern in the other two figures. If you observe the figures carefully, you'll notice that the centre number is equal to the sum of the product of top number and the number on the right and the product of the bottom number and the number on the left.
In the first figure,
5 × 15 + 6 × 3 = 93
Taking LHS,
= 5 × 15 + 6 × 3
= 75 + 18
= 93
LHS = RHS
Now, the same pattern is applicable in the third figure.
18 × 1 + 4 × 8 = 50
Taking LHS,
= 18 × 1 + 4 × 8
= 18 + 32
= 50
LHS = RHS
Since the pattern is same for the first and the third figure, it should be the same for the second figure too. Let the missing number be x.
7 × 5 + 9 × 6 = x
35 + 54 = x
89 = x
Hence, the missing number is 89.
Option D is correct.
d) 89.
In the first box:-
93 = (5×15) + (6×3) = 75 + 18 = 93.
Also,
50 = (18×1) + (4×8) = 18 + 32 = 50.
In the same way :-
? = (7×5) + (9×6) = 35 + 54 = 89 (d).