Question
The ratio of the radii of the
bases of a cylinder and a cone is 7:8, while the ratio of their heights is 4:5. What is the ratio of the volume of the cylinder to the volume of the cone?Solution
ATQ,
Let r and R be the radii of the bases of the cylinder and the cone, respectively. r/R =7/8 Let h and H be the heights of the cylinder and the cone, respectively. h/H =4/5 The formula for volume ratio: Substituting values:
Hence, the ratio of the volumes is 147:80.
Statements:
A ≤ B < D < I; O > W > Z > B = I;
Conclusions:
I) B > O
II) B > A
Which of the following terms will replace the question mark (?) in the given series?
NQLM, OSMO, PUNQ, QWOS, ?
Statements: L ≥ M = N > O, R < M ≤ P > Q
Conclusion:
I. O ≥ Q
II. R < L
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter cluster and th...
Which of the following interchange of signs would make the given equation correct?
42 ÷ 7 − 64 + 11 × 6 = 4
If first and last digit of each number is interchanged then which among the following represents the highest number thus formed?
845 766 ...
Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter series.
A R ...
Find the odd one out.
‘Height’ is related to ‘Acrophobia’ in the same way as ‘Vomiting’ is related to ‘______’.
How is the word “Cleaning” coded in the given language?