மணிக்கு 36 கிமீ வேகத்தில் ஓடும் ரயில் A ஒரு கம்பத்தை 20 வினாடிகளில் கடக்கிறது. மற்றொரு ரயில் B அதன்\n...

Let A and B be two finite sets such that n(A) = 20, n(B) = 28 and n(A ∪ B)=36 , then find n(A ∩ B) .

In Figure, A B C D\ a n d\ F E C G are parallelograms equal in area. If a r\ ( A Q E)=12 c m^2, then a r\ (^(gm)F G B Q)= 12\ c m^2 (b) 20\ c m^2 (c) 24\ c m^2 (d) 36\ c m^2

The figure shows a schematic layout of hydraulic jack. The load to be raised weighs 20,000N. The area of cross section of the two pistons are A_(1)=50cm^(2) and A_(2)=10cm^(2) . The force (F) is applied at theend of a ligh lever bar as shown in the figure. Lenghts a and b are 4cm and 36cm respectively. Find the force (F) required to raise the load slowly.

The recommended daily dose is 17.6 milligrams of vitamin C (ascorbic acid) having formula C_(6)H_(8)O_(6) . Match the following. Given : N_(A)=6 times 10^(23) {:("Column I", "Column II"), ("(A) O-atoms present", "(P)" 10^(-4)" mole"), ("(B) Moles of vitamin C in 1 gm of vitamin C", "(Q)" 5.68 times 10^(-3)), ("(C) Moles of vitamin C that should be consumed daily","(R)" 3.6 times 10^(20)):}

Give the steps you will use to separate the variable and then solve the equation: (a) 3n-2=46 (b) 5m+7=17( c) (20p)/(3)=40 (d) (3p)/(10)=6( e) 8y=36 (f) (z)/(3)=(5)/(4)(g)(a)/(5)=(7)/(15) (h) 20t=10

If log_(10)sin x+log_(10)cos x=-1 and log_(10)(sin x+cos x)=(log_(10)n-1)/(2) then the value of n is (a) 24 (b) 36(c)20(d)12

Match the following {:(,"Column -I",,"Column -II"),((A),underset(3g)(2H_(2))+underset(22.66g)(O_(2))rarr 2H_(2)O,(p),25.5 "g product"),((B),underset(21 g)(N_(2))+underset(5 g)(3H_(2))rarr 2 NH_(3),(q),H_(2) "is present in excess"),((C ),underset(1g)(H_(2))+underset(40 g)(Cl_(2))rarr 2 HCl,(r ),H_(2) "is the limiting reagent"),((D),underset(20g)(C )+underset(6.375g)(2H_(2))rarr CH_(4),(s),36.5"g product"):}