lf half of a number is equal to 0.07 times of another number, then their ratio will be
50 : 7
5 : 7
7 : 50
1 : 14
C.
Let the required numbers are x and yAccording to the question,12of x = 0.07 of y⇒ x2 = 7y100⇒ x2 = 750 = 7 : 50
If a + b + c = 0, then a4 + b4 + c4a2b2 + b2c2 + c2a2 = ?
4
2
1
16
If a : b = 4 : 5, b : c = 6 : 9, c : d = 15 : 19, then a : b : c : d is
8 : 10 : 15 : 19
10 : 11 : 15 : 19
8 : 9 : 15 : 19
19 : 15 : 6 : 8