Mathematics

posted by .

Q1.A man earn $1200 and spends $450 per month.Find ratio of
(a)His income to his expenditure and
(b)His savings to his income

Q2.An open water tank with length 20 cm and width 15 cm holds 4.8 liters of water.calculate the height of the water level tank and the total surface area of he cuboid in the contact with the water.

Q3.A car uses 40 liters of petrol to travel 340 km. how far can it travel if it has only 32 liters of petrol?

  • Mathematics -

    Q1: (a) 1200/450 = ?
    (b) (1200-450)/1200 = ?

    Q2: Water Volume = 20*15*H = 4800 cm^3
    Solve for the water height H (in cm)
    H = 4800/300 = ___

    What is a "he cuboid"? Do you mean the tank area in contact with water? You can certainly do that.

    Q3: (32/40)*340 = ___ km

  • Mathematics -

    According to Wikipedia, one definition of cuboid is:
    ".., the word “cuboid” is sometimes used to refer to a shape ... in which each of the faces is a rectangle (and so each pair of adjacent faces meets in a right angle); this... type of cuboid is also known as a right cuboid, rectangular box, rectangular hexahedron, right rectangular prism, or rectangular parallelepiped."

    I was taught to call it a rectangular prism.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Mathematics

    1.find the capacity of rectangular tone in liters.. Length 5.5 Width 3.5 height 3.6 Height 2.7 Length 4.75 width 3.5 2.Find total surface area of solid cube of volume: 3.A man earn $1200 and spends $450 per month. Find ratio of (a) …
  2. Math

    Find the total surface area if q solid cube of volume 98 cm cube. An open water tank with length 20 cm and width 15 cm holds 4.8 liters of water. Calculate the height of the water level in tank and the total sitface area of the cuboid …
  3. MATH

    Victor Malaba has a net income of $1,240 per month. If he spends $150 on food, $244 on a car payment, $300 on rent, and $50 on savings, what percent of his net income can he spend on other things?
  4. maths

    A man spends 80% of his income. His income increased by 25% and his expenditure increased by 10%. By how much did his savings increase?
  5. Matyh

    Victor Malaba has a net income of $1,240 per month. If he spends $150 on food, $244 on a car payment, $300 on rent, and $50 on savings, what percent of his net income can he spend on other things?
  6. math

    The income of a and b are retio 3:2and their expenditure are in the ratio 5:3 if each saves rs 2000 what is their income
  7. math

    an open water tank with length 20 m and width 15 m holds 4800 cubic metres of water.calculate the total surface area of the part of the tank in contact with water
  8. social studies

    what is the most likely effect on a person's income if he or she has little education and few skills?
  9. percentage

    Madhu's income is RS 12000 per month . She pays 20% tax on monthly income above Rs 2000 and she spends 30% of the remaining income. How much does she save annually 
  10. Math

    A restaurant has two fish tanks on display. One tank holds 625 liters of water while the other holds 312.5 liters. The smaller tank makes up which of the following percents of the larger tank?

More Similar Questions