Answer:
39 DVDs
Step-by-step explanation:
45% of 260
45/100 ×260
117 DVDs of science
40% of 260
40/100 × 260
104 DVDs of history
So from total subjects science and history
260 - (104+117)
260 - 221
39 DVDs of other subjects
In an easiest way 40 + 45
85% of science and history
So 15 % of other subjects
15/100 × 260
39 DVDs
Answer:
There are 39 dvds of other subjects
Step-by-step explanation:
science= 45% of 260
[tex]=\frac{45}{100}*260=9*13=117\\\\History=\frac{40}{100}*260=104\\\\\\Othersubjects=260-(117+104)=260-221=39[/tex]
OR
100 - (45+40)= 100- 85 = 15%
Other subjects = 15% of 260
[tex]=\frac{15}{100}*260=3*13=39[/tex]
