Question

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Q). □ represents a number such that (-5/6) x □ = 1, which of the following statements about □ is NOT true?

a) □ - 5/6 = 1
b) □ < -5/6
c) -6/5 - □ = 0
d) □ lies between -1 and -2​

Answer 1

Answer:

i) false because there are plenty of numbers that are divisible by 3 but not divisible by 9. eg.30.

ii) true

iii) false, number 30 for example, is divisible by 3 and 6 but not divisible by 18.

iv) true

v) false, we know that two numbers having only 1 as a common factor are called co.prime numbers, so not necessary that one of them must be prime.

vi) false, example number 36 is divisible by 4 but not divisible by 8.

vii) true

viii) true

ix) false, example number 5 exactly divides the sum of two number 2 and 3 but not exactly divide these two numbers.