Question Discussion & Solution

+ = → is an assignment operator

y+ = y+3

y = y + (y + 3)

y = 9 + (9 + 3)

y = 21

Note:

The correct answer is Cricket.

• Purushottam Lal Sukhadia, the father of former Rajasthan Chief Minister Mohan Lal Sukhadia, was associated with Cricket.

​Key Points

• Purushottam Lal Sukhadia​
  • Purushottam Lal Sukhadia, the father of former Rajasthan Chief Minister Mohan Lal Sukhadia, was associated with Cricket.
  • He played for the Bombay and Saurashtra teams.

Additional Information

• Mohan Lal Sukhadia
  • ​Mohan Lal Sukhadia was a politician.
  • He served as the Chief Minister of Rajasthan state for 17 years.
  • He became chief minister at the age of 38 and was responsible for bringing major reforms and developments in Rajasthan.
  • For this, he is still widely revered as the "founder of modern Rajasthan".

The relation is:

1) Sports : Ground → Sports are organised in ground.

2) Rubber : Eraser → Rubber is used to erase writings on paper.

3) Cinema : Screen → Cinema is shown on screen

4) Drama : Stage → Drama is played on stage.

Hence, Rubber : Eraser is the correct answer.

The correct answer is Lead and Tin.

Key Points

• Soldering is the process of joining two metal objects together by a third soft metal alloy which is called solder.
• Solder is a metal alloy that melts at a lower temperature than the metals being soldered.
• A commonly used alloy is solder, which is an alloy of tin (Sn) and lead (Pb).
• The alloy of tin-lead solder is a mixture of 63% tin and 37% lead. 63/37 solder melts at 183°C.
• So, Alloy of tin (Sn) and lead (Pb) is used for welding electrical wire together.

Additional Information

• Element Tin (Sn) belongs to Group 14 of the periodic table.
  • Atomic Number - 50
  • Atomic Mass  - 118.710 amu.
• Element Lead (Pb) belongs to Group 14.
  • Atomic Number - 82
  • Atomic Mass - 207.2 amu.

Given: 40 × 20 ÷ 28 - 4 + 2

The logic follows here is: 

  
By inserting codes and then using BODMAS Rule:

40 + 20 - 28 ÷ 4 × 2

= 40 + 20 - 7 × 2

= 40 + 20 - 14 

= 60 - 14

= 46

Hence, 46 is the correct answer.