Random Worksheet- Equations-STD8-EM

Equations...STD - 08

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Qn : 01
If the double of a number is 134 find the number?


Qn : 02
If half of a number is 23 Find it ?




Qn : 03
If you add 23 to a number, you will get 90 Find the number?




Qn : 04
If you subtract 23 from a number, you will get 67 . Which is the number ?




Qn : 05
If you subtract 248 from 4 times a number, you will get 280 . Find the number?




Qn : 06
If you add 189 to 7 times a number , you will get 812 . Find the number ?




Qn : 07
Sum of half of a number and 19 is 288 . Find the number?



Qn : 08
Difference of half of a number and 45 is 314 . Find the number ?




Qn : 09
Prize of 16 pen is 368 then what is the prize of a single pen ?




Qn : 10
Molly's age is 6 times the age of Jone . If Molly's age is 66 , what is the age of Jone ?

Let the number be = x

∴ Double of x = 2x


Equation : 2x = 134

∴ x= 134/2


= 67

Let the number be x

Equation : x/2 = 23

∴ x= 46

Let the number be x

Equation : x + 23 = 90

∴ x= 90 - 23

= 67

Let the number be x

Equation : x - 23 = 67

∴ x= 67 + 23
=90

Let the number be x

Equation : 4x - 248 = 280

∴ 4 x= 280 + 248

=528

x=528/4 =132

Let the number be x

Equation : 7x + 189 = 812

∴ 7 x= 812 - 189

=623

x=623/7 =89

Let the number be x

Equation : x/2 + 19 = 288

∴ x/2 = 288 - 19

=269

∴ x=2 x 269

=538

Let the number be x

Equation : x/2 - 45 = 314

∴ x/2 = 314 + 45

=359

∴ x=2 x 359

=718

Let the number be x

Equation : 16x = 368

∴ x = 368/16

=23

Let the age be x

Equation : 6x = 66

∴ x = 66/6

=11