A. 262 cm2
B. 384 cm2
C. 192 cm2
D. 131 cm2
Area of a parallelogram = base * height = 24 * 16 = 384 cm2
A. Rs. 30
B. Rs. 25
C. Rs. 24
D. Rs. 20
A. 300
B. 200
C. 400
D. 500
Explanation:
(60/100) * X + 120 = X
2X = 600
X = 300
A. 20
B. 15
C. 25
D. 35
Let the number of students who wrote the exam be x.
Total marks of students = 80 x.
Total marks of (x – 5) students = 90(x – 5)
80x – (5 * 40) = 90(x – 5)
250 = 10x => x = 25
A. 3
B. 4
C. 5
D. 6
A. (36,60)
B. (12,180)
C. (96,25)
D. (72,30)
A. 7 years
B. 10 years
C. 15 years
D. 20 years
Explanation:
Let principal be Rs x and the rate is R % p.a.
Then X × (1 + R/100)5 = 2x
=> (1 + R/100)5 = 2
Let x × (1 + R/100)t = 8x
=> (1 + R/100)t = 8 = 23
={(1 + R/100)5 }3
=> (1 + R/100)t = (1 + R/100)15
=> T = 15 Years