`7kg\ 15g= ddotkgdot`

7kg\ 15g= ..... kg

42 kg 15 Dg = ? Dg

if 3 kg 500g : 7 kg : : 27 kg : m kg, then m = _____

Find the cost of sugar and wheat per kg., if the cost of 7kg. Of sugar and 3 kg, of wheat is Rs. 210. cost of 7kg. wheat and 3 kg, of sugar is Rs. 160. (Use determinants).

Calculate the boiling points of a solution prepared by dissolving 15g NaCl to 250g of water. ( K_b of water = 0.512 K kg mol^(-1) , molar mass of NaCl = 58.5) (Hints: triangle T_b = iK_bm )

Analysis of 30g of a compound D was found to contain 10g off element A and 20g of element B. again analysis of 45g of another compound E was found to contain 15g of element B and 30g of element C. caculate the amounts of D and E formed if 15g of A, 60g of B and 15g of C are mixed together and allowed to react with each other. also calculate total mass of the mixture after completion of the reaction. assume that no other reaction is possible except the reaction of B with A and C separately. state which laws of the chemical combination can be utilised in the calculation.

Express as kilogram (kg) using decimals: (i) 8 g (ii) 150 g (iii) 2750 g (iv) 5 kg 750 g (v) 36 kg 50 g

25kg : 20g = 50kg : 40g