A =`pir^2` ⇒ 9,856 =`22/7xxr^2` r2 = 9,856 `xx7/22` = 3136 r =`sqrt3136` = 56 cm Circumference = 2`pi` r = 2`xx22/7xx56` = 352 cm Hence, perimeter of required square = 4a = 352 cm a = 88 cm Hence, required area = a² = 88 `xx` 88 = 7,744 cm²
A sum of Rs.9600 is to be divided among 4 brothers, 3 sisters and 2 aunts. If each sister receives twice as much as each aunt and each brother receives ...
The sum of three numbers is 189. If the ratio of the first to the second is 3:4 and that of second to the third is 5:7 then the second number is?
Three numbers are in ratio 4:5:7. If the sum of the squares of those three numbers is 360 then find the sum of the three numbers.
The sum of the first, second, and third numbers is 231. The first and second numbers are in a 3:5 ratio, and the second and third...
A plot has to be divided among P, Q and R in the ratio 2:3:5 respectively. If the area of plot received by R is 5200m² more than the area of plot recei...
There are some assistants and officers in an office, if 15 assistants leave then there are 3 officers for each assistant. After this again 51 officers g...
The sum of three numbers is 184. If the ratio of the first to the second is 3:4 and that of second to the third is 8:9 then the second number is?
Gold, Silver and Bronze invested money in the ratio of 1/2:1/3:1/4 in a business. After 4 months, Gold doubled his investment and after 6 months, Silver...
Some amount was divided among A, B and C in the ratio 3:5:8. If the share of A is 40 less than share of C, then find the 1/4th of total amount (in Rs).
Two numbers are in the ratio 5 ∶ 9. If each number is decreased by 8, the ratio becomes 1 ∶ 3. The numbers are:
