The volume of a cube is 21952 cm3 . (Length of each side of cube)3 = 21952 Length of each side of cube = 28 cm A maximum possible size of circle is drawn on each face of the cube. Then the diameter of the circle is equal to the length of each side of the cube. diameter of the circle = 28 cm Radius of circle = 28/2 = 14 cm The circle drawn on each face of the cube is painted by pink colour at the rate of Rs. 12.5 per cm2 and the remaining part of the cube is painted by the red colour at the rate of Rs. ‘y’ per cm2. If the total cost of painting the entire cube is Rs. 64848. cost of painting each side of cube = 64848/6 = Rs. 10808 [12.5 x (22/7) x (radius)2] + [y x [28x28-[(22/7) x (radius)2]]] = 10808 Put the radius in the above equation. [12.5 x (22/7) x (14)2] + [y x [28 x 28-[(22/7) x (14)2]]] = 10808 [12.5 x (22/7) x 196] + [y x [784-[(22/7) x 196]]] = 10808 [12.5 x 616] + [y x [784-616]] = 10808 7700 + y x 168 = 10808 168y = 10808-7700 168y = 3108 Value of ‘y’ = 18.5
Answer the following question based on the direction given below.
If 'A#B' means 'A is father of B'
'A@B' means 'A is brother of B'
If R is the brother of X’s father’s mother in law, then which of the following expression is true?
If A – B means that A is the mother of B, A + B means that A is the father of B, A ÷ B means that A is the sister of B, then which of the following ...
If 'A+B' means 'A is daughter of B', 'A-B' means ‘A is wife of B', ‘A × B' means 'A is the son of B', if P× Q-S then which of th...
'A # B' means 'A is the brother of B'. 'A @ B' means 'A is the daughter of B'. 'A & B' means 'A is the husband of B'. 'A % B' means 'A is the wife of B'...
'A @ B' means 'A is married to B'. 'A & B' means 'A is the sister of B'. 'A % B' means 'A is the daughter of B'. 'A $ B' means 'A is the father of B'. I...
If ‘L#H$I@G?W*K’ is true, then, how is K related to L?
If A # B means A is brother of B,
A @ B means A is mother of B
A $ B means A is father of B
A & B means A is sister of B.
In...
In expression ‘S & T $ U # V @ W & Y $ Z’ how is Z related to U?
A $ B' means 'A is the daughter of B'. 'A % B' means 'A is the father of B'. 'A & B' means 'A is the brother of B'. 'A # B' means 'A is married to B'. I...
