IMO- Mathematics Olympiad Class 10: Questions 728 - 731 of 908

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 908 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 728

» Area, Surface Area & Volume

MCQ▾

Question

A cylindrical vessel of diameter 5cm is partly filled with water. 400 lead balls are dropped in it. The rise in water level is 0.9cm. The diameter of each ball is ________.

Choices

Choice (4) Response

a.

0.204cm

b.

0.302cm

c.

0.802cm

d.

0.223cm

Question number: 729

» Area, Surface Area & Volume

MCQ▾

Question

A car is moving with the speed of 26 decimeter per second. If it performs 21 revolutions per second, the diameter of the wheel is ________.

Choices

Choice (4) Response

a.

2.5cm

b.

5.5cm

c.

3.3cm

d.

0.1cm

Question number: 730

» Area, Surface Area & Volume

MCQ▾

Question

PQ is a line segment of length 8cm. O is the mid-point of PQ. Circle are drawn with P, O and Q as centers and radii PO=OQ (see figure). The area of the colored portion (in cm2 ) is________.

 Image of trapezoid and semi-circle

Image of Trapezoid and Semi-Circle

PQis a line segment of length 8 cm. O is the mid-point of PQ. Circle are drawn with P, O and Q as centers and radii PO = OQ

Choices

Choice (4) Response

a.

(4π123)

b.

(2π33)

c.

(8π63)

d.

(8π123)

Question number: 731

» Area, Surface Area & Volume

MCQ▾

Question

A cuboidal metal of dimensions 12cm×8cm×4cm was melted and cast into a cylinder of height 15cm. Its radius is________.

Choices

Choice (4) Response

a.

842430cm

b.

843340cm

c.

842330cm

d.

942330cm

f Page
Sign In