Question : If A = 2³ ×  3⁷, B = 2⁷ ×  3⁵ and C = 2⁸ × 3⁴, then what is the least common multiple of A, B and C?

Option 1: 2⁷× 3⁷

Option 2: 2⁶ × 3⁷

Option 3: 2⁸ × 3⁷

Option 4: 2⁹ × 3⁷

Question : $A=2^K×3^5$ and $B=2^5×3^7$. If the least common multiple of A and B is $2^8×3^7$, then what is the value of K?

Option 1: 6

Option 2: 8

Option 3: 9

Option 4: 3

Question : If A + {5 × 8 ÷ 2²} × 11 = 134, then what is the value of A?

Option 1: 24

Option 2: 4

Option 3: 14

Option 4: 34

Question : If P = 7 × 4 – 3, Q = 8 ÷ 4 + 2, and R = 14 ÷ 21 × 9, then what is the value of P × Q + R?

Option 1: 96

Option 2: 112

Option 3: 108

Option 4: 106

Question : If p : q : r = 2 : 5 : 3 and r : s = 6 : 5, then what is the value of p : q : r : s?

Option 1: 4 : 12 : 7 : 3

Option 2: 4 : 10 : 6 : 5

Option 3: 6 : 5 : 8 : 10

Option 4: 8 : 12 : 7 : 8