Total number of students who took part in the the quiz =10
Let, the number of boys who took part in the quiz =x
and, number of girls who took part in the quiz =y
According to question,
x+y=10 ...........(1)
y=x+4 ..........(2)
By putting value of x=10-y in equation(2), we get
y=10-y+4
or, 2y=14
So, y= 14/2 =7
and x=10-7=3
Therefore,
Number of boys who took part in the quiz =3
Number of girls who took part in the class =7
5) 10 students took part in a quiz. If the number of girls is 4 more than the number of boys, find the number of boys and girls who took part in the quiz?
Answer is:
3 Boys and 7 Girls
Explanation:
Related ISRO Technician-B Fitter Question Paper - 2018 (Set - 1) with Answer Key
Answer is:
5 mtr
Explanation:
Let the length of ladder be x,
x^2 = 3^2 +4^2
x^2 =9+16=25
X=5
Answer is:
Centre of one pin hole to the centre of another pin hole
Explanation:
The length of the hacksaw blade is measured from centre of one pin hole to the centre of another pin hole.
Answer is:
0.8 mm
Explanation:
Pitch selection for Hacksaw Blade:
For soft materials such as bronze, brass, soft steel, cast iron, heavy angles etc. use a 1.8 mm pitch blade.
For tool steel, high carbon, high speed steel etc. use a 1.4 mm pitch. For angle iron, brass tubing, copper, iron pipe etc. use a 1 mm pitch blade.
For conduit and other thin tubing, sheet metal work etc. use a 0.8 mm pitch.
Answer is:
Grade
Explanation:
The grade of file tool is listed below
1. Rough
2. Bastard
3. Second Cut
4. Smooth
5. Dead Smooth
1) Rough File : A rough file is used for removing rapidly a larger quantity of metal. It is mostly used for trimming the rough edges of soft metal castings.
2) Bastard File: A bastard file is used in cases where there is a heavy reduction of material.
3) Second Cut File: A second cut file is used to give a good finish on metals. It is excellent to file hard metals. It is useful for bringing the jobs close to the finishing size.
4) Somooth File: A smooth file is used to remove small quantity of material and to give a good finish.
5) Dead Smooth File: A dead smooth file is used to bring the material to accurate size with a high degree of finish.
