Timed Challenge - Answer & Submit | GK Mania

1 If (a−b)=4, (a+b)=8, then a²−b² = ?

A) 48

B) 32

C) 16

D) 24

2 A:B efficiency = 5:3. Together in 15 days. A alone?

A) 18 days

B) 20 days

C) 30 days

D) 24 days

3 Sum of AP: 5, 8, 11 ... 20 terms?

A) 680

B) 670

C) 660

D) 650

4 Sum of GP: 3 + 6 + 12 + ... 8 terms?

A) 780

B) 756

C) 750

D) 765

5 Avg of 8 numbers is 30. Remove 10. New average?

A) 31.9

B) 33.9

C) 32.9

D) 34.9

6 Volume of cylinder: radius 7, height 10?

A) 350π

B) 700π

C) 490π (~1539)

D) 140π

7 Simplify: √(3+2√2)?

A) 1+√2

B) √3+√2

C) 2+√3

D) 3+√2

8 Sum of GP: a=10, r=2, n=5 terms?

A) 312

B) 320

C) 300

D) 310

9 6 people sit in a circle. How many handshakes if each shakes adjacent only?

A) 12

B) 6

C) 15

D) 5

10 What language builds web server backends?

A) CSS

B) Node.js

C) Photoshop

D) HTML

Quiz

1 If (a−b)=4, (a+b)=8, then a²−b² = ?

2 A:B efficiency = 5:3. Together in 15 days. A alone?

3 Sum of AP: 5, 8, 11 ... 20 terms?

4 Sum of GP: 3 + 6 + 12 + ... 8 terms?

5 Avg of 8 numbers is 30. Remove 10. New average?

6 Volume of cylinder: radius 7, height 10?

7 Simplify: √(3+2√2)?

8 Sum of GP: a=10, r=2, n=5 terms?

9 6 people sit in a circle. How many handshakes if each shakes adjacent only?

10 What language builds web server backends?

Navigator

Quiz

1 If (a−b)=4, (a+b)=8, then a²−b² = ?

2 A:B efficiency = 5:3. Together in 15 days. A alone?

3 Sum of AP: 5, 8, 11 ... 20 terms?

4 Sum of GP: 3 + 6 + 12 + ... 8 terms?

5 Avg of 8 numbers is 30. Remove 10. New average?

6 Volume of cylinder: radius 7, height 10?

7 Simplify: √(3+2√2)?

8 Sum of GP: a=10, r=2, n=5 terms?

9 6 people sit in a circle. How many handshakes if each shakes adjacent only?

10 What language builds web server backends?

Navigator

Quiz Results