CTET Solved Paper - UTET September 2013 Paper2
81. In given figure, the area of shaded region is
- Option : B
- Explanation : (B) Area of PQRS = 20 × 20
= 400 sq cm
Area of ΔTSU = 1/2 × 10 × 10
=50 sq cm
Area of ΔQUR = 1/2 × 10 × 20
=100 sq cm
And area of ΔPTQ = 1/2 × 10 × 20
=100 sq cm
∴ Area of shaded region = 400 - (50 + 100 + 100)
= 150 sq cm
83. How many numbers exist between 225 and 550 which are completely divisible by all of 4, 5 and 6?
- Option : C
- Explanation : (C) LCM of (4,5,6) = 60
Multiple of 60 between 225 and 550 are 240, 300, 360,420,480 and 540,
i.e. 6 numbers.
, then the value of x is
