6. If p + q=k, p-q=n and k > n, then q is...............(positive/negative).
7. If a + b = x, a - b = y and x < y, then b is.................(positive/negative).
solve question 6 & 7
Answers
6)Given,
p+q=k. ................ (i)
p-q=n. ................ (i)
and, k>n
=> k-n>0, i.e (k-n) is +ve. ........... (iii)
From (i)-(ii), we get---
p+q-(p-q) = k-n
=> p+q-p+q = a +ve no. [from (iii)]
=> 2q = a +ve no.
=> q = (a +ve no.)÷2
=> q = a +ve no.
Similarly try next one. Ans will be negative.
Hope it'll help
Answer:
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