Question

51. If the period is increased, then the simple interest per each term A) increases B) decreases C) remains constant D) cannot say 52. If perimeter of a square is 48 m, then its area is
A) 24 m B) 576 m C) 144 m D) 288 m. 53. Im cm A) 1000 B) 10000 C) 100000 D) 1000000 54. If 3 hr 20 min: 5 hr = 20 km:xkm, then X A) 10 B) 20 C) 25 D) 30​

Answer 1

Answer:

51. increased , 52. 144 m^2 , 53 please write in a proper way and 54. 30

Step-by-step explanation:

51. if the period is increased then simple interest is also increased

52. if perimeter = 48

then 4*side=48

side=48/4=12 m

area =side*side=12*12=144 m^2

53 . please write again in proper way

54. 3hr 20min = (3 + 1/3)hrs = 10/3 hrs

so,

10/3 hrs : 5 hrs

= 10 : 15

= 20 : 30

it means according to ratio ,if first is 20 then second is 30

so the answer is 30

D ,option is right