यदि `4xx3=14, 5 xx 4 = 18, 6xx5 = 22` हो , तो `7xx6` का मान ज्ञात कीजिए :

Options

A. 20
B. 26
C. 30
D. 42

Answer

B

Explanation

(i) `4 xx 3 = 14 rArr (4 + 3) xx 2 `
` = 7 xx 2 = 14`
(ii) `5 xx 4 = 18 rArr (5 +4) xx 2`
`= 9 xx 2 = 18`
(iii) `6 xx 5 = 22 rArr (6 +5) xx 2`
` = 11 xx 2 = 22`
उसी प्रकार ,
(iv) `7 xx 6 rArr (7 + 6) xx 2`
` = 13 xx 2 = 26`