Explanation

The sequence is 1/3, 1/5, 1/7,...

Put n = 1,2,3

n=1 => 1/3

n=2 => 1/5

n=3 => 1/7

Denominator pattern is 3,5,7

Denominator = 2n+1

So nth term = 1/(2n+1)

Last verified on 22-10-2026

Explanation

Step 1: +30%

2,400 x 1.30 = 3,120

Step 2: -20%

3,120 x 0.80 = 2,496

Last verified on 22-10-2026

Explanation

FAG -> GAF = 1st and 3rd letter swapped.

HAI -> IAH = 1st and 3rd letter swapped.

So:

Pair 1: F A G , G A F (F and G)

Pair 2: H A I , I A H (H and I)

Pair 3: J A K*, K A J (J and K)

Next term after IAH is JAK.

Last verified on 20-10-2026

Explanation

Multiply by 3 each time.

1/9 x 3 = 1/3

1/3 x 3 = 1

1 x 3 = 3

3 x 3 = 9

Answer = 3

Last verified on 20-10-2026

Explanation

SISTER = 535301

S = 5, I = 3, T = 3, E = 0, R = 1

UNCLE = 84670

U = 8, N = 4, C = 6, L = 7, E = 0 (E = 0 matched)

BOY = 129

B = 1, O = 2, Y = 9

Now SON

S = 5

O = 2

N = 4

SON = 524

Last verified on 20-10-2026

Explanation

Circle is the odd one out.

Cone, Cylinder, Sphere are 3D solids (have volume).

Circle is a 2D shape (only area, no volume).

Last verified on 20-10-2026

Explanation

All pairs have a common factor greater than 1 except one.

56, 63 = Both divisible by 7

96, 108 = Both divisible by 12

16, 18 = Both divisible by 2

86, 99 = 86 = 2 x 43, 99 = 3 x 3 x 11 - No common factor

So 86, 99 does not belong to the group.

Last verified on 20-10-2026

Explanation

Let P = 1 unit

Q is twice as old as P:

Q = 2 x P = 2

Q is twice younger than T means T is twice older than Q:

T = 2 x Q = 4

R is half the age of P:

R = P / 2 = 0.5

R is twice older than S means S is half of R:

S = R / 2 = 0.25

Order from oldest to youngest:

T = 4 > Q = 2 > P = 1 > R = 0.5 > S = 0.25

Oldest = T

Second Oldest = Q

Last verified on 20-10-2026

Explanation

New Radius = 10 + 1% of 10 = 10 + 0.1 = 10.1

Old Area = pi _ 10 _ 10 = 100 pi

New Area = pi _ 10.1 _ 10.1 = 102.01 pi

Increase = 102.01 pi - 100 pi = 2.01 pi

Percentage Increase = (Increase / Old Area) _ 100

= (2.01 pi / 100 pi) _ 100

= 2.01%

Last verified on 20-10-2026

Explanation

Price becomes cheap, so you get 3 extra in $1.

Let old price = 100 cents

New price = 80 cents (20% less)

Old qty in $1 = let's say = x

New qty in $1 = x + 3

Money spent is same $1, so:

x _ 100 = (x+3) _ 80

100x = 80x + 240

20x = 240

x = 12

So old = 12 sharpeners in $1

New = 12+3 = 15 sharpeners in $1

For $5

Old = 12 x 5 = 60

New = 15 x 5 = 75

Last verified on 20-10-2026