**441. The area of the square formed on the diagonal of a rectangle as its side is 108 1/3 % more than the area of the rectangle. If the perimeter of the rectangle is 28 units, find the difference between the sides of the rectangle?**

A. 8

B. 12

C. 6**D. 2**

**442. The ratio of the length and the breadth of a rectangle is 4 : 3 and the area of the rectangle is 6912 sq cm. Find the ratio of the breadth and the area of the rectangle?****A. 1 : 96**

B. 1 : 48

C. 1 : 84

D. 1 : 68

**443. Find the area of a parallelogram with base 24 cm and height 16 cm.**

A. 262 cm2**B. 384 cm2**

C. 192 cm2

D. 131 cm2

**444. Find the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 15 cm.**

A. 225 cm2

B. 275 cm2**C. 285 cm2**

D. 315 cm2

**445. The perimeter of a triangle is 28 cm and the inradius of the triangle is 2.5 cm. What is the area of the triangle?**

A. 25 cm2

B. 42 cm2

C. 49 cm2**D. None of these**

**446. If the sides of a triangle are 26 cm, 24 cm and 10 cm, what is its area?****A. 120 cm2**

B. 130 cm2

C. 312 cm2

D. 315 cm2

**447. What is the are of an equilateral triangle of side 16 cm?**

A. 48√3 cm2

B. 128√3 cm2

C. 9.6√3 cm2**D. 64√3 cm2**

**448. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is__________?**

A. 53.33**B. 54.68**

C. 55

D. None of these

**449. The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.**

A. 47.55 kg

B. 48 kg**C. 48.55 kg**

D. 49.25 kg

**450. The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is 867 sq m, then what is the breadth of the rectangular plot?**

A. 8.5 m**B. 17 m**

C. 34 m

D. 51 m