If the area of a square increases by 69%, then the side of the square increases by ---

A 13%
B 30%
C 39%
D 69%

Correct Answer: 30%

Let the initial side of the square be X. Initial area = X2 New area = X2 + 69% of X2  = 169% of X2  = 169 / 100 x X2  = 1.69X2 So, new side = √(1.69X2) = 1.3X Therefore, increase in side = (1.3X - X) / X x 100% =  30%
Bissoy MCQ
#গণিত #শতকরা (Percentage) #Standard Bank Ltd #Standard Bank Ltd - Asst. Officer (Cash) - 15.05.2009

Related Questions

The length of each side of square A is increased by 100 percent to make square B. Again the length of each side of square B is increased by 50 percent to make square C. By what percent is the area of square C greater than the sum of the areas of square A and B?
A 75%
B 80%
C 85%
D 90%
The length of a rectangle is 6 feet more than the side of a square and the width of the rectangle is 6 feet less than the side of that square. If the area of the square is 64 sq feet, what is the area of the rectangle?
A 20 sq feet
B 30 sq feet
C 40 sq feet
D 28 sq feet
The length of a rectangle is 6 cm more than the side of a square, and the width of the rectangle is 6 cm less than the side of the square. If the area of the square is 86 cm2. what is the area of the rectangle?
A 36 cm2
B 40 cm2
C 50 cm2
D 64 cm2
The length of each of square A is increased by 100 percent to make square B.Again the length of the each side of square B is increased by 50 peacent to make square C.By of the area df square A and B?
A 75%
B 80%
C 85%
D 90%
The length of a rectangular field F is 3 km greater than the side of a square field M , and the width of field F is 3 km less then the side of field M. If the area of field M is m2 square km, what is the area of field F?
A m2 +6
B 6
C m2 - 6
D m2 +9
If the area of a square increases by 69%, then the side of the square increases by ----
A 13%
B 30%
C 39%
D 69%
If the side of a square increases by 40%, then the area of the square increases by-
A 16%
B 96%
C 116%
D 140%
In triangle PQR length of the side QR is less than twice the length of the side PQ by 2 cm. Length of the side PR exceeds the length of the side PQ by 10 cm. The perimeter is 40 cm. the length of the smallest side of the triangle PQR is:
A 6 cm
B 8 cm
C 9 cm
D 10 cm
Shahin has purchased a square sheet of plywood of 169 square feet area. To cover a wall he must cut off two feet from a side. What is the area, in square feet, of the wall?
A 117
B 121
C 143
D 141
Saurabh has purchased a square sheet of plywood of 196 square feet area. To cover a wall he must cut of 3 feet from a side. What is the area, in square feet, of the wall?
A 154
B 144
C 169
D 168

Next steps