Three sides of a triangular field are of length 15 m, 20 m and 25 m long, respectively.

• 750

• 150

• 300

• 600

The value of (tan 1°  tan 2°  tan 3°.... tan 89°) is

• undefined

• 0

• 1

• 89

A, B, C and D purchase a gift worth ₹ 60. A pays 1/2 of what others are paying, B pays 1/3rd of what others are paying and C pays 1/4 of what others are paying. What is the amount paid by D?

• 14

• 15

• 16

• 13

Mohan gets 3 marks for each correct sum and loses 2 marks for each wrong sum. He attempts 30 sums and obtains 40 marks. The number of sums solved correctly is

• 25

• 10

• 15

• 20

The greatest common divisor of
   and  is

• 

• 20

• 2

• 1

If the length of the sides of a triangle are in the ratio 4 : 5 : 6 and the inradius of the triangle is 3 cm, then the altitude of the triangle corresponding to the largest side as base is

• 10 cm

• 8 cm

• 7.5 cm

• 6 cm

The cost of manufacture of an article was ₹ 900. The trader wants to gain 25% after giving a discount of 10%. The marked price should be

• ₹ 1000

• ₹ 1500

• ₹ 1250

• ₹ 1200

If a² + 1 = a,  then the value of a¹² + a⁶ + 1 is

• 2

• 3

• -3

• 1

If  and . then the value of 

• 9

• 0

• 1

• 4

A person distributes his pens among four friends A, B, C and D in the ratio . What is the minimum number of pens that the person should have?

• 75

• 45

• 57

• 65