Question
The average age of A, B and C is 30 years, while the
average age of B, A and D is 20 years. If the ratio of the age of C and D is 5:3, respectively, then find the age of D.Solution
Sum of ages of A, B and C = 30 × 3 = 90 years Sum of ages of B, A and D = 20 × 3 = 60 years So, C – D = 90 – 60 = 30 years Let the age of C and D be 5x and 3x years, respectively. 5x – 3x = 30 2x = 30 x = 15 So, age of D = 3x = 45 years.
Select the Venn diagram that best represents the relationship between the following classes: Oxygen, Hydrogen and Gases.
In a certain code language.
"book pen mouse computer" is coded as "er gh iu ev"
"keypad pen book bottle" is coded as "gh ty iu kl"
...
In the following question, a statement is followed by two conclusions, assuming everything in the statement is true, decide which of them logically foll...
Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
17 * 4 * 6 * 2 * 4 = 9
What could be the code of "Purpose" in the given language?
Select the figure that will come next in the following figure-series.Â
Statements:
I. Â Some doctors are engineers.
II. Â All engineers are lawyers.
Conclusions:
I. Â Some lawyers are doct...
What should come in place of '?' in the given series?
-12, +24, -48, +96, ?, +384
Which of the following letter-clusters will replace the question mark (?) in the given series?
ZG, BD, CX, EO, FC, ?
