Question

q no. 91 and 92

plz answer it with explanation

Answer 1

Answer:

91. Option(D)

92. Option (A)

Step-by-step explanation:

(91).

To find the least number which is exactly divisible by 35,48 and 56. We find LCM of these numbers.

Prime factorization of 35 = 5 * 7

Prime factorization of 48 = 2 * 2 * 2 * 2 *  3

Prime factorization of 56 = 2 * 2 * 2 * 7

LCM(35,48,56) = 5 * 7 * 2 * 2 * 2 * 2 * 3

                         = 1680.

So, the required number = 1680 - 7

                                         = 1673.

(92)

Given, Interior angle = 135°.

Exterior angle = 180° - 135° = 45°.

Number of sides of a regular polygon = 360°/Exterior angle

                                                               = 360/45

                                                               = 8.

Hope it helps!

Answer 2

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