Question
The circumference of a circle is equal to the perimeter
of a rectangle whose length and breadth are in ratio 7:5, respectively. If the area of the rectangle is 4235 cm2 , then find the radius of the circle.Solution
Let the length and breadth of the rectangle be 7x cm and 5x cm, respectively According to the question, 7x × 5x = 4235 => x2 = 4235/35 = 121 => x = 11 Therefore, perimeter of the rectangle = 2 × (7x + 5x) = 264 cm Let the radius of the circle be ‘r’ cm According to the question, 2πr = 264 Or, r = 264 × (7/44) = 42 cm
In a code language, 'BLACK' is written as AALKC, and 'BROWN' is written as AORNW.
How will 'COLOR' be written in the same language?
Select the option that is related to the third term in the same way as the second term is related to the first term.
Typhoid : Bacteria :: Influenza : ?
If 16 July 2001 is Monday, then what will be the day of the week on 23 December 2006?
Six people, Karan, Dilip, Rahul, Prabhat, Alok and Sandeep are sitting in a straight line, facing north. Karan sits 2nd from the left end. Dilip sits 3r...
Six numbers 1, 2, 5, 6, 8 and 9 are written on different faces of a dice. Two positions of this dice are shown in the figure. Which is the number on the...
Select the number from the given options which can come in place of the question mark (?) in the following equation.Â
13.98 – (12.02 ÷ 4.002)...
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
AEH, DHK, GKN, JNQ, ?
Select the combination of letters that when sequentially placed in the blanks of the given series will make it logically complete.
PR_Y_ _RA_ZP_A_Z
In a certain code language, ‘let it go’ is coded as ‘vc nt ap’ and ‘this is it’ is coded as ‘mq vc lh’. What is the code for ‘it’ in...
Select the Venn diagram that best represents the relationship between the given set of classes. Wrestlers, Boxers, Fighters
Relevant for Exams:
