Explanation

“should” is used to indicate something which is probable.

Here in this case Probability of failure on not working hard.

The sentence, in this case, will be “Work hard lest you should fail”. 

Explanation

pugnacious لڑنے پر مائل

friendly دوستانہ

Explanation

Explanation

swindle: دھوکہ

fraud :دھوکہ

Explanation

There are three subatomic particles: protons, neutrons and electrons.

Two of the subatomic particles have electrical charges: protons have a positive charge

while

electrons have a negative charge.

Neutrons, on the other hand, don't have a charge.

ND11-07-2023

Explanation

Galileo di Vincenzo Bonaiuti de' Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath. 

Galileo was the first to point out the obvious: all motion is relative.

Galileo Galilei is famous for:

 he was the first to report telescopic observations of the mountains on the moon,

the moons of Jupiter, the phases of Venus,

and the rings of Saturn

He invented an early microscope and a predecessor to the thermometer.

ND11-07-2023

Explanation

abrasive کھرچنے والا

grinding پیسنے

Explanation

Let the three numbers be x,y,z

(x+y)/2=2

(y+z)/2=3

(x+z)/2=4

from all equations,

x+y=4

y+z=6

x+z = 8

Add all equations

2(x+y+z) = 18

x+y+z = 9

Avg of 3 nos = (x+y+z)/3

= 9/3

= 3

ND5-07-2023

Explanation

amulet تعویز

charm دلکش

Explanation

we could use ‘if he were’, if the events are imagery or improbable.

‘If he were’ can be used when expressing an imaginary situation in the present that is definitely not true.  

In the given question, he behaves like a king, which is an imaginary situation 

So we have used ‘if he were’, instead of using ‘if he was’.