Advertisements
Advertisements
Question
Evaluate:
70% of 70 + 90% of 90 – 120% of 120.
Advertisements
Solution
70% of 70 + 90% of 90 – 120% of 120
= `(70xx70)/100+(90xx90)/100-(120xx120)/100`
= 49 + 81 − 144
= 130 − 144
= − 14
APPEARS IN
RELATED QUESTIONS
Write the following as percent:
\[\frac{14}{625}\]
Find: 2.7 is what percent of 18?
In a combined test in Maths and Chemistry; 84% candidates passed in Maths; 76% in Chemistry and 8% failed in both. Find: if 340 candidates passed in the test; then how many appeared?
A number increased by 15% becomes 391. Find the number.
Express the following percentage as a fraction and as a decimal number:
25 %
Mr. Sharma has a monthly salary of ₹ 8,000. If he spends ₹ 6,400 every month; find:
(i) his monthly expenditure as a percent.
(ii) his monthly savings as a percent.
Find the percentage change from the first quantity to the second:
₹ 80, ₹ 120
Find the number that is 50% more than 48
Evaluate:
8% of 900 – 12% of 750 + 20% of 165.
Rewrite the underlined part using percentage language.
Only 2 persons out of 3 will be selected in the interview
