EMotorad Interview Questions and Answers

Minimum 31 socks need to be taken out to get 15 pairs of socks

• To get 15 pairs of socks, you need to have 30 socks of different colors

• After taking out 30 socks, the next sock you take out will complete the 15 pairs

• So, minimum 31 socks need to be taken out to get 15 pairs of socks

The number of apples eaten on the first day can be calculated by working backwards from the total number of apples eaten over 5 days.

• Calculate the total number of apples eaten over 5 days: 100 apples

• Subtract the apples eaten on the 2nd day (6 more than the 1st day), 3rd day (6 more than the 2nd day), and so on until the 5th day to find the apples eaten on the 1st day

• Example: 1st day = x, 2nd day = x + 6, 3rd day = x + 12, 4th day = x + 18, 5th day = x + 24. Total = 100 apples

The weight of the pen is 4 kg.

• To find the weight of the pen, we can set up the equation: pen weight = 2 kg + 1/2 of its own weight

• Let x be the weight of the pen. The equation becomes: x = 2 + 1/2 * x

• Solving for x, we get x = 4 kg

When designing an online carrom game, the saved data when the game is paused and resumed should include player scores, positions of coins, game state, and timer status.

• Player scores should be saved to ensure continuity.

• Positions of coins on the board should be saved to resume the game accurately.

• Game state (such as whose turn it is) should be saved to maintain the flow.

• Timer status should be saved to resume the game with the correct time remaining.

To correct the labels on 3 boxes with jumbled fruit labels, the least number of steps required is 2.

• Pick a fruit from the box labeled 'apples + oranges', since it must contain both fruits.

• Then pick a fruit from the box labeled 'oranges', as it cannot contain apples.

To calculate 15 mins using 11 mins and 7 mins hourglasses, start both hourglasses together. When the 7 mins hourglass runs out, flip it. When the 11 mins hourglass runs out, flip the 7 mins hourglass. When the 7 mins hourglass runs out again, 15 mins have passed.

• Start both hourglasses together

• When the 7 mins hourglass runs out, flip it

• When the 11 mins hourglass runs out, flip the 7 mins hourglass

• When the 7 mins hourglass runs out again, 15 mins have passed

Fill 4L using 5L and 3L jugs with minimum water wastage

• Fill the 3L jug and pour it into the 5L jug, leaving 1L in the 3L jug

• Empty the 5L jug, then pour the 1L from the 3L jug into the 5L jug

• Fill the 3L jug again and pour it into the 5L jug, now you have 4L in the 5L jug