Fill in the blanks.
(i) The HCF of two co-prime numbers is P.
(ii) Two natural numbers which have no common factor except 1 are called Q numbers.
(iii) If a number is divisible by 9 then sum of its digits must be divisible by R.
Find the area of rectangular floor of length 11 m and breadth 7 m. Also find the cost of polishing the floor at the rate of ₹ 6 per m2.
A77 cm2, ₹ 460
B66 cm2, ₹ 462
C66 cm2, ₹ 460
D77 cm2, ₹ 462
this isn't about the wrong answer but it should be m2 in the answer.
The given figure is made up of three rectangles.
Find the length of CD.
how to get this answer/