Question

Q.l (a) Solve : 3 (z + l) + 4 ( z + 0.3 ) = 20 z+ 0.95 (b) Let € = { 1 ,2 ,3 ,4 ,5 ,6 ,7 , 8,9 } ,A= {l ,2 ,3 ,4 } , B = {2 ,4,6 ,8 } then Find - (i)AuB (ii)AnB (iii)A' and B' (iv) A'u B'
Q.2 (c) Inscrt three rational numbers between - l""a { (a) Find the diameter of the circlewhose circumference is 308 cm. (b) If 9' x 3s x (27)r - 27 thenfind the value of n. 3 x (81)4 (c) Find the square root of 166464 by division method. (a) Find thevalue of - AG_&6- x€6oo (b) Find the compound interest on ( 1,000 at the rate of2Uo/o per annum for 18 months when the interest is compounded half yearly. (c) The sum of three consecutive odd natural numbers is 87. What are the three numbers. (a) The simple interest on a sum of 5 years is one- fourth of the sum. What is the rate of interest per annum. (b) Calculate the length marked by x in given diagram, the unit of length being cm. Q.3 Q.4 (c) Priya takes 4 hours in walking a distance of 20 km. What distance would she cover in 7 hours. SECTION - B I40 marks I (Attempt any fourquestions ) . (a) If n( E)=75, n(A) = 38, n(B) = 45, Find n(A') and n(B'). (b) < 780 is paid for a task which A can do in 6 days, B in 8 days and C in 4 days. If allworktogether, how much money should each receive. (c)Solve: 5x+l _ x-2 _ 2x+4 (3) (4) (3) (3) (4) (3) (3) (4) (3) (3) (4) (3) (3) (4) (3)​

Answer 1

Answer:

sorry I didn't know about this

Step-by-step explanation:

I didn't know about this