ICSE ICSE Class 7 - CISCE Question Bank Solutions

If A = {3, 5, 7, 9, 11} and B = {4, 7, 10}, find: A ∩ B and n(A ∩ B)

If A = {2, 4, 6, 8} and B = {3, 6, 9, 12}, find: (A ∩ B) and n(A ∩ B)

If A = {3, 5, 7, 9, 11} and B = {4, 7, 10}, find: (A – B) and n(A – B)

If A = {3, 5, 7, 9, 11} and B = {4, 7, 10}, find: n (B)

If P = {x : x is a factor of 12} and Q = {x: x is a factor of 16}, find : n(P)

If P = {x : x is a factor of 12} and Q = {x: x is a factor of 16}, find : n(Q).

If P = {x : x is a factor of 12} and Q = {x: x is a factor of 16}, find : Q – P and n(Q – P).

Find three rational numbers equivalent to `3/5`

Find three rational numbers equivalent to `4/-7`

Find three rational numbers equivalent to `-5/9`

Find three rational numbers equivalent to `8/-15`

Find x, such that: `(-2)/3=6/"x"`

Find x, such that: `7/-4 = "x"/8`

Find x, such that: `3/7 = "x"/-35`

Find x, such that: `(- 48)/"x" = 6`

Find x, such that: `36/"x" = 3`

Find x, such that: `(-27)/"x" = 9`

Express the following rational number to the lowest term: `12/15`

Express the following rational number in the standard form. `(-7)/-8`

Express the following rational number in the standard form. `5/-12`