Question
A wire is in the form of square with side 11 cm. It is
bent to form a circle. What is the radius of the circle?Solution
ATQ, Length of wire = 4 × 11 cm = 44cm. Now, the perimeter of circle is 44 cm. 2πr = 44 cm. R= 7 cm
The total population of villages A and B together is 75000. ‘y’% and (y+15)% of the population of village A and B are working professionals. The rat...
Income of A is twice the income of B. B and A spend 75% and 85% respectively of their incomes. Find the savings of A, if B saves Rs. 18000 in a month.
P is 25% less efficient than Q. In what ratio should their wages be shared?
A student multiplied a number by 4/5 instead of 5/4. What is the percentage error in the calculation?
In an election, 10% of the total registered voters did not cast their votes. Two candidates contested. The winner secured 55% of the votes cast and won ...
Monthly savings of X is 55% of his monthly income which is Rs. 6800. If ratio of monthly expenditure of Y and X is 15:8 respectively and monthly savings...
In a mixed school 25% of the scholars are infants under 7 and the number of girls above 7 is 4/5 of the number of boys above 7, and amounts to 120. Find...
What is 15% of 34?
Ritesh allocates 80% of his monthly income to expenses and saves Rs. 7000. Rishav, whose monthly income is 20% lower than Ritesh's, spends 75% of his in...
The marks scored by a boy in three subjects are in the ratio 4 : 3 : 2. Boy scored an overall aggregate of 60% in the exam. If the maximum marks in each...
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