Challenger App

No.1 PSC Learning App

1M+ Downloads
മൂന്ന് സംഖ്യകളുടെ ശരാശരി 20 അവയിൽ ആദ്യത്തെ രണ്ട് സംഖ്യകളുടെ തുക 42 ആയാൽ മൂന്നാമത്തെ സംഖ്യ ഏത്?

A18

B48

C28

D8

Answer:

A. 18

Read Explanation:

മൂന്ന് സംഖ്യകളുടെ ശരാശരി 20 3 സംഖ്യകളുടെ തുക= 3 × 20 = 60 ആദ്യത്തെ രണ്ട് സംഖ്യകളുടെ തുക= 42 മൂന്നാമത്തെ സംഖ്യ= 60 - 42 = 18


Related Questions:

What will be the difference between the sale price (in INR) of a book with a marked price

INR 1,500 under the following discount schemes?

(i) Two successive discounts of 20% each

(ii) Two successive discounts of 30% and 10%

The average of the numbers 20, 25, x, 28, and 32 is 27. What is the value of x?
If two successive discounts of 25% and 20% respectively are given, then what will be the net discount percentage?
The average salary of 30 employees is ₹4,000. If one more person joins and the average salary becomes ₹4,300, what is the salary of the newly joined person?
The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 103. Find the average of the remaining two numbers?