Mr. thomas spent $1,600 of his savings on a television set and 2/5 of the remainder on a refrigerator. he had 1/3 of his original amount of savings left. what was the cos of the refrigerator?

The amount spent on the refrigerator is $ 800 .

Step-by-step explanation:

Given as :

The amount spent on television = $ 1600

Le The total amount in the account = $ A

so, The amount left in account after spent on television = $ A - $ 1600

The amount spent on refrigerator = × ( A - 1600 )

The amount left in his saving account = × A

Now, According to question

A - ( 1600 +   × ( A - 1600 ) ) =   × A

Or, A -   × A = 1600 +   × ( A - 1600 )

Or, × A = 1600 + × A - × 1600

or,   × A -   × A = 1600 - 640

Or,   × A = 960

or,   × A = 960

∴ A =

I.e A = 3600

So, The amount in the saving account  is $3600

∵ , The amount spent on refrigerator = × ( 3600 - 1600 )

Or,  The amount spent on refrigerator = × 2000

I.e  The amount spent on refrigerator = $ 800

Hence The amount spent on the refrigerator is $ 800 . Answer

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.