Question

If LCM(x, 18) =36 and HCF(x, 18) =2, then x is

(a) 2 (b) 3 (c) 4 (d) 5

1

13 In ∆ABC right angled at B, if tan A= √3, then cos A cos C- sin A sin C =

(a) -1 (b) 0 (c) 1 (d) √3/2

1

14 If the angles of ∆ABC are in ratio 1:1:2, respectively (the largest angle being angle

C), then the value of

secA

cosec B

–

tanA

cot B

is

(a) 0 (b) 1/2 (c) 1 (d) √3/2

1

15 The number of revolutions made by a circular wheel of radius 0.7m in rolling a distance

of 176m is

(a) 22 (b) 24 (c) 75 (d) 40

1

16 ∆ABC is such that AB=3 cm, BC= 2cm, CA= 2.5 cm. If ∆ABC ~ ∆DEF and EF =

4cm, then perimeter of ∆DEF is

(a) 7.5 cm (b) 15 cm (c) 22.5 cm (d) 30 cm

1​

Answer 1

Answer:

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