The value of 1 + 3 + 5 + 7 +...

Home / Arithmetic Ability / Simplification / Question

Examveda

The value of 1 + 3 + 5 + 7 + . . . . . . (2n - 1) is:

A. (2n - 1) × (2n - 1)

B. $$\frac{n}{2}$$

C. n × n

D. $$\frac{{n\left( {n + 1} \right)}}{2}$$

Answer: Option C

This Question Belongs to Arithmetic Ability >> Simplification

Join The Discussion

Related Questions on Simplification

A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?

A. 45

B. 60

C. 75

D. 90

E. None of these

View Answer

There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:

A. 20

B. 80

C. 100

D. 200

E. None of these

View Answer

The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:

A. Rs. 3500

B. Rs. 3750

C. Rs. 3840

D. Rs. 3900

E. None of these

View Answer

If a - b = 3 and a² + b² = 29, find the value of ab.

A. 10

B. 12

C. 15

D. 18

E. None of these

View Answer

More Related Questions on Simplification